I have a large mailing, how can I save postage?
Having the right size envelope will save you postage. If you are just over the weight limit for the envelope class, a good way to save postage is to use envelopes made with Tyvek®. Tyvek® is stronger than paper and also lighter in weight. The Tyvek® envelope will cost more but the savings in postage may provide you with your lowest total cost.
