return postage question

[Hawaiian BamBam]

hey guys,
how much shoul i put on the return sase for a 8x10 photo? i was thinking 2-3 stamps? please let me know so i can have the correct return postage on it. if i dont get the postage correct on a sase, will the post office just charge me "postage due" when i pick up the item? thanks
elbert

 

[oldmarine0311]

just take it down to your local po and have them weigh it for you, that way you know what it will cost for a return.