If the wall behind your stove is lined with ceramic tiles, you know there's really a curse hidden inside that beautifully-patterned blessing. Tiles are magnetic for sauces and liquids, which sometimes seem to jump right out of the pan and attach to the wall. Not only do the splatters dry and harden quickly after contact, but using just a sponge and water won't wipe away the germs below the surface.
To clean splatters and spots from a ceramic tile back-splash, wipe the tile down with a clean sponge dampened with rubbing alcohol. The rubbing alcohol will not only get rid of the gunk, it will disinfect the backsplash, too.