I recently discovered that this oil-type spray is not the best for losening hinges and locks - you're better off using a thicker machine oil for those purposes. However, WD40 does work wonders in many other areas:
- I just used permanent marker on my white board and it dried super fast. I sprayed on a little WD40 and it completely dissolved the ink in seconds.
- I've also used the spray to remove sticker residue from a CD case and from a washing machine...it worked a little miracle.