When I needed bottles, I hosted a poker night and fed everyone, but there was one condition: everybody had to bring beer with pop-off caps. It worked great, had fun playing cards and got all the bottles I needed. One side note is depending on what style capper you have make sure, before bottling day, that the bottles will work with it. I have a "winged style capper" not a pull down and had trouble with some bottles.
Keg 1:Stone IPA Clone (favorite among friends)
Keg 2: punkin chunkin ale (ok, but almost kicked)
Primary: My IPA
Fermenting 1: Apfelwein!!!
Fermenting 2: Black Pearl Porter