How to print address labels?

I sometimes go through fazes of selling all my unwanted or unused items on ebay, so when items sell i print off my address labels and stick them to my packages, and keeps things nice and simple, However i don't know how to do it on the mac

I know you can do it somehow through address book, but these are all addresses i will never need again, just 1 time to post packages so dont want to go through the hasssle of doing it that way

Will i need to get an app for it? If so which 1 should i go for?