This cheatsheet lists the most common Blender actions and their respective keybindings / mouse actions. This cheatsheet applies to Blender 2.80 and higher. Blender 3.0 and higher is preferred. I personally use my own compiled build of Blender 3.2 Alpha, but your Blender version will most likely use the same set of keybindings if you are indeed using Blender 2.80 or newer.
Keybinding: G + X, Y, Z — Moves the selected object along the chosen axis (X, Y, or Z).
Mouse Action: G + Middle Mouse Button (aka. scroll wheel) — Drag & Snap the selected object along a chosen axis (X, Y, or Z).