After having a door for around twelve years, the nob became loose. So here is how to fix a door nob!
Step 1: Needed
Screwdriver that fits in the screws on the nob
( I didn't use my noggin and took the nob off with the door closed. Locked myself in. ;-) )
Step 2: Uncrew the Swrews
Unscrew the screws all the way.
Step 3: Remove the Nob
Before removing, make sure the door is open. Unless you don't mind being locked in the room for eternity.
Step 4: Clean Nob
Basicly wipe it down.
Step 5: Put Back
Put it back on and enjoy! Note I got out cause someone opened the door from the other side.