The Sweetest Thing. The cute little stamp set is from Skipping Stones Desgin called Halloweenie. It comes with a cute little 'Boo' poem to use for neighbor treats:
Someone who thinks you're very dear, has "BOO"ed you with Halloween cheer. Now take this note & make a copy or two, add fun & treats, any goodies will do. Leave it on their stoop & make it quick, keep your "Boo"ing a secret, that's the trick. By H.Timmins
I also like this for the color challenge at There She Goes.