The 5 Clearance Mistakes I Made Before I Built a Tracker

A Quick Confession

I didn’t build Endless because I was a smart shopper. I built it because I was a bad one. Two years of trial and error — a lot of error — taught me that clearance hunting rewards process, and punishes enthusiasm. The five mistakes below are the ones I made over and over, in some cases for an embarrassingly long time.

If you’re starting out, maybe I can save you a few of them.

Mistake 1: Chasing The Penny Item Instead Of The Profit

In my first year I treated .01 items like trophies. If a friend texted “$0.01 Milwaukee at store 4218” I’d drop what I was doing and drive across town. I’d come back with a $90 retail tool I’d paid a penny for, and I’d feel like a genius.

What I didn’t account for:

• Gas to the store (let’s call it $8)
• The 70 minutes round-trip (call it $25 of my time, conservatively)
• The fact that 7 out of 10 trips the item was already gone

The math on chasing pennies is brutal once you actually run it. A $90 tool acquired for $0.01 after a 70-minute drive is, in expected value, often a worse deal than a $30 markdown at the store five minutes from my house.

What I do now: I have a 15-mile rule for penny items, and a “resale value > $60” rule for anything further. Most penny chases fail both filters.

Mistake 2: Trusting The Shelf Tag

This one still stings. For about six months I assumed the price on the shelf was the price at the register. It often isn’t.

Home Depot’s pricing system updates centrally, but stores re-tag manually. The gap between when a markdown drops and when the tag goes up can be hours or days. During that window, you’ll see the old (higher) price on the shelf and the new (lower) price at the scanner. I left dozens of dollars on the table not knowing this.

What I do now: I scan everything with the Home Depot app’s barcode scanner in the aisle. The app shows the actual current price. If it’s lower than the tag, I know it’s a real markdown the store hasn’t caught up on yet.

The flip side is also true — sometimes the shelf shows a great clearance price and the register rings full. That’s a different kind of mistake and worth a separate post.

Mistake 3: Walking The Store Without A Plan

For at least a year I’d “drop by Home Depot” with no specific item in mind and walk every aisle. I’d come out with a $40 cart of items I didn’t plan to buy and rationalize each one as “well, it was on clearance.”

Most of those items would have failed any pre-walk filter I’d have set. They weren’t deeply marked down. They weren’t on my project list. They were just there and cheaper than usual. Unplanned clearance buying is how I ended up with three pressure washer hoses and a smoker cover for a smoker I don’t own.

What I do now: I don’t enter a store without a list. The list is short — 1 to 4 items, from a Sunday scan — and I don’t deviate. Even if I see something else interesting, I add it to next week’s list and let it wait. Eighty percent of the time I never go back for it, which is the right outcome.

Mistake 4: Only Watching One Store

I lived 8 minutes from one Home Depot and assumed it was my Home Depot. I checked it twice a week and ignored the four other stores within a 25-minute drive.

When I finally started scanning all five, I realized two things:

1. The clearance overlap between stores is much smaller than I expected. The penny item at my home store might be at full retail at the store one town over, and vice versa.
2. The store five miles further away had 2.5x the clearance volume of my home store, just because it was bigger and turned over inventory faster.

I was hunting in the wrong forest the whole time.

What I do now: I watch every store within 25 minutes. There are three of them, and they have very different profiles. One is heavy on tools, one is heavy on seasonal, and one is the dumping ground for slow-moving paint. With about 2,340 Home Depot locations nationwide, almost everyone has at least 2–4 stores within reasonable driving distance — and the clearance overlap between them is far smaller than people assume.

Mistake 5: Believing The Folklore Instead Of Checking The Data

The clearance internet is full of confident claims. “Markdowns always hit Monday at 9.” “Pennies happen at end-of-quarter.” “Mid-month is dead.” I repeated all of these to friends before I had any evidence.

Once I actually had two years of scan data, most of the folklore turned out to be partially right at best. Mondays are real — but Tuesdays are right behind them. Pennies don’t cluster at quarter-end — they flow steadily. “Mid-month is dead” is just wrong; mid-July and mid-January are two of the best windows of the year.

I’d built strategies on this folklore for a long time. Some worked anyway because the underlying advice was directionally fine. Others quietly cost me.

What I do now: I trust scan data over recycled tips. If someone tells me “X always happens Y,” I check whether my data agrees before I act on it. Most of the time the rule is more nuanced than the slogan.

What Ties These Together

Looking back, every one of my mistakes was a version of the same root cause: I was acting on partial information and treating it as complete. One shelf tag instead of the actual register price. One store instead of every store. One day’s folklore instead of two years of data. One “this is on clearance” reflex instead of a calculated decision.

The tracker I built didn’t make me a smarter shopper. It just removed the partial-information problem. Once I could see all the stores at once, sorted by markdown depth, the bad habits started fixing themselves — because there was no longer any excuse for them.

The Mistakes I Still Make

I’m not above this. Last month I drove 12 miles for a .01 Ryobi that turned out to be a phantom — the scanner caught a price that the store had pulled before opening. I came home with nothing. The 15-mile rule held, the gas cost was minor, but the time was gone.

I still occasionally buy things I don’t need because the discount is too pretty to ignore. The frequency is way down from year one, but it’s not zero. I don’t think it ever gets to zero. The goal is to make it rare.

Frequently Asked Questions

What’s the single biggest mistake new clearance hunters make?

In my experience, it’s chasing penny items at distant stores. The math almost never works once you factor in gas, time, and the probability the item is already gone. Stay close and focus on quality markdowns at stores you can hit in 15 minutes.

How do I know if a clearance “deal” is actually a deal?

Two checks: (1) Is the markdown more than 40% off the original price? (2) Would I buy it at this price even if it weren’t on clearance? If either answer is no, it’s not a deal — it’s an excuse.

Why is shopping one store a mistake?

Clearance is store-specific. The penny item at one store can be full retail at the store one town over. If you only watch one location you’re seeing maybe 30% of what’s available in your area. Watching three to five nearby stores massively widens the funnel.

Is most clearance folklore wrong?

Not exactly wrong — usually it’s a real signal that’s been over-simplified. “Mondays” is real but not universal. “Pennies happen at quarter-end” is wrong. Treat slogans as starting hypotheses, not rules.

Did building your own tracker fix all this?

Not all of it, but most of it. The tracker eliminated the “I only know about one store” and “I can’t see what’s marked down without going there” problems. The behavioral mistakes — impulse buys, chasing too far — those I still work on.