Comment by AndyMcConachie

When my team started moving everything over to shared drives I made it a point that the top folder on every share would be the year. So the top of the hierarchy is just folders named '2019', '2020', etc.

This means that every year we get to recategorize the stuff underneath it and we learn as we go. Most of the sub-folders have stayed the same year to year, but some are different. It lets people see what works and what doesn't, and it prevents the cruft of ages to accumulate. Sometimes work bleeds from one year into the next, but if you're starting something new, create it in this year's folder.

Having been the victim of lots of shared folder catastrophes in the past, this simple rule has really worked out well for my team so far.