DeskTidy
A Windows app that keeps your desktop and downloads folder sorted by how recently you touched things. It can undo every move it has ever made.
The problem
The desktop and the downloads folder are where files go to die. Everyone knows they should be sorted. Nobody sorts them.
The reason is simple. Any manual system asks you to make a decision about every file, at exactly the moment you are busy with something else.
What it does
Files sort themselves by how recently you used them. What you touched today is one click away. What you have not opened in a year is out of sight, but not gone.
Junk filenames get cleaned up. Search by name returns instantly, and takes filters for extension, size, age and folder.
A review pass finds duplicates, empty files, old installers and stacked copies of the same download. A global hotkey opens search from anywhere, without switching windows.
The decision that made it trustworthy
Every move is written into an undoable session. The undo is real. Not a log. An undo.
A tool that quietly rearranges the files on your machine is asking for a lot of trust on the first run, and it has done nothing yet to earn it. Being able to put everything back exactly as it was is what makes installing it a reasonable thing to do.