Crossword puzzle clue "what you do to a computer file so you don't lose your work"

What you do to a computer file so you don't lose your work

Opus ___ (Catholic teaching also called "the Work, work work work work")

Make sure you won't lose a file

File extension for a Microsoft Paint file

Peter Tosh "You Don't Miss Your Water (Till Your Well Runs ___)"

File you won't find in the computer

"All right, brain, I don't like you and you don't like me - so let's just do this and I'll get back to killing you with ___": Homer Simpson

Yell at your parents for not making the soup salty enough because your crush told you your mouth looks too funny to kiss, e.g.