Build Your Own Price Tracker with a Spreadsheet

If you'd rather not rely on a third-party tool, a simple spreadsheet can do a surprisingly good job of tracking electronics prices over time. Here's a practical setup.

Why bother with a manual tracker

Automated comparison tools are convenient, but a personal spreadsheet gives you full control over exactly which items and retailers you're watching, and it costs nothing beyond a bit of your time. It's particularly useful for a specific, planned purchase — like a TV or laptop you're saving up for — where you want to understand normal pricing before committing.

Setting up the basic structure

A simple layout works best: one row per price check, with columns for date, retailer, product name, model number, price, and a notes column for anything relevant (like "included free shipping" or "bundle deal"). Keeping model numbers precise matters more than it might seem, since near-identical products can have meaningfully different specs.

How often to check and log

Checking weekly is usually enough to catch meaningful price movement without becoming a chore — daily tracking rarely reveals much more unless you're watching for a specific known sale event. Around major sale periods (Black Friday, Boxing Day, winter sales) it's worth checking more frequently, since prices can shift quickly during these windows.

• Set a recurring calendar reminder rather than relying on memory to check prices.
• Log the price even when it hasn't changed — this confirms your data isn't stale.
• Note any conditions attached to a price (bundle, trade-in required, membership pricing).

Turning data into a decision

Once you've got a few weeks of data, a simple chart of price against date can make it obvious whether current pricing is actually good relative to what you've observed, or just an average price with sale-style marketing around it. This is the main value of doing this yourself — you're building a personal reference point rather than trusting a retailer's own "was/now" framing.

Bottom line

A basic spreadsheet is a genuinely effective, zero-cost way to understand whether a price is actually good, especially for a single planned purchase. It takes a bit of discipline to maintain, but the data it produces is entirely your own and fully trustworthy.