I'm going to be moving soon and posting a bunch of books that I do not want to pack, also I have some other books on my shelf already that I would like to swap. I use printable postage and DC so I'm not sure how to add additional books without messing up the postage if anybody knows please let me know :)

I do not drive or go out much so I depend upon the PBS printable wrappers.

Thanks :)

Do you mean for deals? Like sending more than one book at a time? If so-what you need is a postal scale--you can't adjust the weight for shipping without actually knowing the weight. Also, I've noticed that quite often, PBS has the shipping cost TOO high--so my scale has saved me money on shipping.  You can pick a scale up for a couple bucks at really any store that sales shipping supplies (I got mine at target--I know they sell them at other stores, like walmart, staples, etc.)  OR, since you don't drive much, you could always order one from Amazon or something. :)

Hope that helps!