Download it here (187 KB pdf).
It's a collection of all the little rules that I kept on having to look up but weren't worth having bookmarked. It includes combat actions, falling damage, the locational hit chart, calculating strike rank, armour penalty and movement speeds, as well as a few other things. I used to print it on the bank of the combat manoeuvres cheat sheet that Mongoose used to offer but which appears to have vanished off their website. I have a pdf copy but an unsure about whether it's legal to upload it or not? Anyhow, between the combat manoeuvres sheet and this cheat sheet, you spend far less time flipping through the book, so enjoy!