after two years of going to the post office. I might have to return it though because... I bought some stamps yesterday and then I realized that the stamps are for lettermail only and don't quite add up to the light packet amount when you stick on 2 or 3. So I took it to the post office and they added the extra charge for me and then the clerk told me that I can't ship via light packet using stamps and that I have to line up and have them print out the label and such (which is what I was trying to avoid). Is this true? Can't I just buy a bunch of 1, 5 and 10 cent stamps to add on what I am missing?