I’ve compiled a list of useful VIM commands that I need to maneuver around VIM efficiently.

CTRL + u Moves up a page.
CTRL + v Visual Mode: Selects a block of text.
SHIFT + v Select a full line of text.
u Undo last stuff.
CTRL + r Redo the last stuff.
SHIFT + d Delete a line after the cursor but leave the line empty.
SHIFT + c Changes everything after the cursor.

Source: Vim Cheat Sheet