Pre Addressed Envelopes
combine a tag & an invitation envelope…..created this “All Aboard!” writing style bigflourish.com
Chalkboard gift wrapping doodles
Mail art. Kirarina Wink Markers & Decorating Envelopes
Hand Printed Envelopes by inkybug on Etsy | I like this idea for every day letter mailings too
Well isn't this just lovely. Surprises surprises everywhere!!
Dark Side of Typography More
Self promotion idea. Direct mail that is interesting is still one of the best self promotion ideas out there. Just remember to be creative.