As a senior citizen, I been through the gadget-buying stage of life many years ago and now just appreciate sticking to the basics to accomplish most jobs.
The gadgets are stuck in a closet or long-ago donated.
That said, I've got some gadgets that do pay for themselves (in either time or money or both) and I'm very happy with: 1.food saver vacuum system 2. slow cooker 3.food dehydrator 4. computer 5. pressure washer
Would you share some of your gadgets that you feel save you time or money ("time is money")