If you're cheap like me, you want good free stuff. Here's a list of all my favorite good free things.

Bitmap/Raster Graphics: Paint.NET,Pinta, Gimp, Krita, MyPaint

Pixel art: Aseprite (Pre-compiled binaries cost, but you can download the source and compile for free)

Drawing: MediBand Paint Pro

Vector Graphics: Inkscape, Pencil Project

Online bitmap/PDF/.sketchpad (whatever that is): Sketch.io Sketchpad

Diagrams : draw.io

Clean interface with a few non-intrusive ads (no account required): Cubeupload

Professional-looking host with a few ads (needs account): Photobucket

In-browser or offline, automatic uploading: Lightshot

Offline only, also takes animated GIFs: Gyazo (NOTE: I gained a virus soon after installing this. However, nobody else has had issues. Most likely safe, but be careful.)

Windows-only, no automatic upload: Snipping Tool (Most likely came with Windows)

Mac-only, no automatic upload: CMD+SHIFT+4 and select area

Free game art and sounds: OpenGameArt, Kenney Assets

Popular & Often-used: Youtube

Less comments, more video: Vimeo

Also has minor editing ability: VLC

Windows only: MPC-HC

Difficult to use, tons of options and features, no watermark: OBS (Open Broadcaster Software) (Also does live-streams)

Easy to use, not many options, has watermark: Bandicam

3D Keyframe animation (and modeling): Blender

Difficult to use, all-you-can eat buffet of features: Lightworks (There is a paid version of lightworks. Just get the free one. See the blue "Lightworks Free" header on the homepage.), DaVinci Resolve Primarily for colour grading, but has a fairly robust video editing component as well.

Easy to use basic features: Windows Movie Maker, iMovie (comes free with mac computers)

(And also spreadsheets, presentations, etc. Basically free Microsoft Office.)

Full-featured online editor with auto-save, live multi-person editing, and more: Google Docs (Also known as Google Drive. Docs and drive aren't technically the same thing, but they pretty much are. I don't understand either.)

Offline Editor: LibreOffice

Code for the front-end web (HTML, CSS, JS, etc): Brackets

Online JS/HTML/CSS: JSFiddle, Codepen

General Code (all languages): Atom, Sublime Text, [Notepad++] (https://notepad-plus-plus.org)

IDEs for most languages: JetBrains (free if you're a student, paid otherwise)

Beginners' Lanuage and Editor: Scratch (Great community for kids)

Full 3D engines: Unity, Unreal Engine (Free for personal use, licenses and revenue sharing for commercial use.)

Lightweight HTML5 game engine: Phaser

Windows: Cmder

OS X: iTerm2

Sheet Music: MuseScore

Text-based music making: Lilypond

Chiptune/8-bit: Famitracker

Online Sheet Music: flat.io, Noteflight

Digital Audio Workstation (DAW): LMMS

A free and public domain library: IMSLP.org

Free, sound effects library: Zapsplat.com (You can get a paid account too and the money will be donated to charity. You will have to wait 10 seconds to download if you're using a basic account)

Easy-to-use compressor: 7zip

Add Google Chrome-style tabs to the Windows file explorer: Clover

Free, no ads and student friendly: Gwiddle

Free, has addons and elements to make setup easy: heroku

Free, easy to use cloud hosting: openshift

Free and fast hosting with no backend: GitHub Pages