Started sourcing tech accessories for resale about a year ago and burned through a lot of junk before figuring out a filter that actually works. Sharing it in case it saves someone else the same headaches.

1. If the ad shows 6 use-cases in 15 seconds, be suspicious. Products that do everything usually do nothing well. The winners in my catalog solve exactly one annoying problem (e.g. "my phone falls off my desk mount") and solve it completely.

2. Check the return rate before the review score. A 4.3 star rating with a 30% return rate tells you the thing looks good in photos and falls apart in hands. Suppliers will hide this — you have to ask directly.

3. Magnetic > adhesive > clips, in that order, for anything you'll touch daily. Adhesive degrades in heat, clips crack within weeks. Magnets (done right, with actual N52 hardware, not the cheap stuff) hold up.

4. Charge speed claims are almost always tested under lab conditions you'll never replicate. Ask for real-world mAh delivered, not the marketing wattage.

Built my whole first product line around these four rules — first item live now is a magnetic charging stand that passed all four checks. Happy to share sourcing questions if anyone's getting into this space.