Cheap and Easy Seed Envelopes

I like to reuse/recycle when I can.  I've been thinking about how I can reuse the numerous seed catalogues that I received this year.  I also have some extra seeds left over form what I bought, collected or was given. Some of my friends and I are going to trade our left over seeds.  I divided up my leftovers into smaller portions and packaged them up using half pages from my seed catalogues and sealing them shut with sticky labels.  The multiple folds should contain even tiny seeds.