Fit
- Measure the space
- Check product dimensions
- Allow room for doors, cables, lids or movement
Free checklist
The boring checks before you buy.
Most bad small purchases fail for ordinary reasons: the thing does not fit, refills cost too much, setup is awkward, or daily use is more annoying than the product photo suggests.
Running cost
- Check refills, filters, bags or replacement parts
- Price the consumables before the device
- Avoid products with unclear refill routes
Setup
- Check app, batteries, mounting, hose, clips or drilling
- Confirm what is included in the box
- Read return terms before fitting anything permanent
Daily use
- Decide where it will live
- Check cleaning and access
- Avoid features you will not maintain
One-minute script
Ask this before opening Amazon
- Where will this live?
- What measurement decides whether it fits?
- What will I need to replace later?
- What setup step might annoy me?
- What would make me return it after one week?
Start here