I'm wondering if there's a "cheap" or "low budget" way to buy stamps in bulk? I'm of course putting stamps on the invite I mail, as well as the return RSVP card (so guests do not have to provide a stamp). If I did the math right I'm looking at like $90 for just stamps!! Is this something I can do "cheaper" or do I have to suck it up and spend $90 on stamps? Haha wedding planning is making me crazy!