For anyone that ships frequently, and uses UPS, You can get them free if you simply know how.  Simply setup a UPS account at http://www.ups.com (that part is free also), and request 25 or 50 label sets of UPS Ship labels.  They peel off and stick to the package.  They're just as good as Avery, but you don't waste any money.  Oh and guess what? They'll ship them to you FREE also! How good is that?  I also requested ship windows, just in case I run out of labels before I get replacements. (always good to have a backup plan).  The ship windows are naturally weather resistant, so a little snow, rain, etc won't bother them.