The CWAL Rubber Room
"Don't talk to me while I'm drinking your blood! That's rule number one!"
It got so bad for me that I had to set up a plethora of automated system policies to clear the bullshit out on a regular basis.
Let's take NVidia for example. Every single download for a driver package is well over 100mb. Fair enough, it's a one size fits all application package, but actual driver file is like an atom compared to the elephant that is the installation package. And unless you do a 'clean' install, it leaves those downloads in your appdata folder; forever.
Try it if you've got an NVidia card. Before I put my policy in place about two years ago, I'd be wondering where all of my space was going and find out that the folder was 15GB for some reason.
And that's just one example. Most programs are designed to shit in a bag and leave that ever ever expanding bag of said shit in your app data folder. Usually in the 'roaming' folder in my experience.
Temporary usage is certainly understandable to ffs.
If you want to do something similar to system policies but you don't have win10 pro or access to the group policy editor, you can use an ancient program Lifehacker created called 'Bedevere' or 'Belvedere' something like that (I know one of those is the name of a dude we used to play WoW with and the other is the app).
Make sure you read guides first, however. If you set a policy or tell the lifehacker app to regularly delete shit in the wrong place, you're gonna have a bad time.
Another fun thing you can do is automatically organize files. For example; my recycle bin cleans itself automatically every second Sunday, and random image files or documents and zip files I place on my desktop are auto-sorted into appropriate folders as part of the shut-down process/policy.
One thing I've been working on with limited success is to have it so that documents that haven't been opened in 6 months are automatically added to a compressed archive and dated.
Additional. My computer turns on automatically every morning at 5am and goes through aforementioned shut-down process at 10pm, with a notice so I can tell it to stay on if I'm still using it.
There's a whole bunch of crazy shit that can be done with even just the base offering of windows that not many people utilize, I suppose because it's power user stuff.
I certainly went off on a tangent, but yeah; Bedevere, or Belvedere by Lifehacker. Look it up.