How do you handle file clutter without spending time manually deleting stuff?

I realized today that my main downloads space has turned into a digital graveyard. It’s got everything from old tax forms to random setup files I used once and forgot about.

Sorting through thousands of files by hand takes way too long, but I'd rather avoid adding another monthly software subscription just for file management.

What free built-in features or quick folder setups are you using to auto-archive or wipe old files?