Living in a small place without a secure garage / storage room to keep your trusty two-wheeled steed in? The Leonardo may be the answer to avoid locking your bike up outside where it’s vulnerable to theft:
It gets your bike up off the floor with a minimum of material, eschewing an elaborate pulley system in favor of a single hook. The tire tray option helps keeps tire marks off the wall, and the whole thing is sleek enough not to be an eyesore when the bike isn’t there. $19.99 gets you both the hook and the tire tray; you can knock five bucks off if you don’t care about skid marks on the wall.