I don't know about you - but along with my ribbon addiction, I have paper addiction, and I just HAVE to buy a stack if I like it. I'm usually pretty good about buying them with my 40% coupon at Michaels (another great place for paper stack that I've been buying from is Winners/HomeSense in Canada - do you have that in US?).
Anyway, I had this really cute Hallowe'en paper collection from Recollections (Michaels) that I bought post-Hallowe'en last year. It came with transparency overlays, glitter cardstock, embossed paper, double-sided, and I think that there were about 12 sheets all different, and bought them for $2.99. The worst part about me (and probably you, too!) is that I buy because it's such a great price, but many times, I don't use it.