Tools and Sites
Greenshot
Greenshot
Best free screenshot taking app. Easy editor to annotate screenshots, auto save to custom directory's and clipboard, etc
Mastodon
Mastodon
Not a Twitter alternative but rather a ActivityPub implementation for micro blogging
I'm using the Toot! for Mastodon app most for it's simple GUI and stable usage
Notepad++
Notepad++
Notepad++ is a free (as in “free speech” and also as in “free beer”) source code editor and Notepad replacement that supports several languages / sytax highliting.
Bitwarden
Bitwarden
Nice and, hopefully, reliable password manager. Great support on many platforms and good free and paid offers.