(that might have already been invented before)
I’ve got a couple:
- A mug with an inbuilt thermometer, which warns you if your hot drink is going cold. (I drank a lot of cold tea whilst decorating last week).
- Some kind of Excel macro/script that auto-populates addresses if you give it a list of places. (I’ve got to write a load of thank you letters for schools/churches who have had harvest collections for the foodbank, and looking up all their addresses manually was a bit of a pain).
I’ll close this for now but fear not: I’ll reopen this tomorrow.