Sticky Problem

Sir, - Would someone please tell me the secret of how to peel off a "peel 'n' stick" 28p Christmas stamp in one piece

Sir, - Would someone please tell me the secret of how to peel off a "peel 'n' stick" 28p Christmas stamp in one piece. After spending about an hour at it, and with the help of a pair of tweezers and a sharp knife, I've finally managed to extract a few mangled, tattered bits that look as if a mouse had chewed them. There must be an easier way to do it. Perhaps some of your readers have discovered how. - Yours, etc.,

Knocksinna Crescent, Dublin 18.