There are also other websites which go into detail on other very nice deco tricks... if you're really into deco, I highly suggest you do a google search for "uo" "deco" (keep the quotations around both words for the best results).
I discovered a trick that allows me to chop up stone tables... like you could a long time ago, actually its along the same lines as the trick with the stairs almost. Anyway... have fun decorating