Bad tidying advice

Often articles about tidying say things like ' if you haven't opened a box in a year, just chuck it - you obviously don't need it."

These articles are obviously written by naturally tidy people.

I've just come across a basket - from before lockdown - filled with varying things: old receipts and Sunday school pictures, which could easily be chucked; coloured paper, leftover craft materials and various folders, which were worth keeping but I wouldn't have missed...

...and my employment contract. 

Glad I didn't just chuck the whole lot!