Where's the WD-40 when you need it?! Well for one it's not really something you can put in your pockets and carry with you wherever you go. Sometimes you just need to lubricate a squeaky hinge without having to lug an entire can for a full spray.

Cue the WD-40 Pen! It's God sent. It makes it easy to "draw on" the exact amount of lubrication needed without overdoing it and causing a mess. The best part about the pen is that you can store it anywhere close to you - at work, in your pocket, anywhere that isn't necessarily your tool cabinet. And for $3, why not?