It all depends on the situation.

Maybe bed risers then? These are short ones so wont raise it much but you can get up to 8" risers if you want. These will stop the wheels from rolling, but if they still slip you can get the anti slip stuff too /shrug.

http://www.sears.com/craftsman-non-…

"If you leave hydrogen alone for long enough it will start thinking for itself."

TV Suggestion

So your TV only has Optical out, but you need stereo out?