Boards
When you're cooking something and using a jar of sauce or similar...
it's perfectly normal when, after pouring it into your pan or what-have-you, to get the rest of the stuff out of the jar, you can splash a bit (just a small bit) of water into the jar, close it up, give it a shake, then tip the rest into the pan. No waste, no fuss. I grew up watching my dad do this and I do the same. Yet my better half has suggested this makes me cheap and disgusting.
I'm right though, aren't I.