Vinyl lettering is easy to remove with a pair of tweezers or your fingernails.  Just gently lift up the corners and slowly remove the lettering from your surface.  If you have had the lettering on your surface for a long time, use a hair dryer on a low setting to soften the letters before removing.  Just go slowly ... for safety!  You'll know how fast you can remove the letters after the first few are done.

 

HINTS:  Razor blades work well for removing vinyl off glass and products like Goo-B-Gone and OOPS! help remove stubborn, sticky vinyl residue. (Be sure to test a small area first --- these products also remove paint.)