Angelo, I'm not talking about postal outlets or mailing services. I mean philatelists/dealers in collector's stamps who buy & sell from the collecting public.
Discounts vary depending on denominations and quantity - we usually get the high denominations at 5-10% off face value, and the lower at 15-20% off, and we usually plan on spending $300 - $500 at a time. It all depends on what the dealer has available at the time!
Hope this helps, and I could use the info on rigid envelopes too - Staples is NOT inexpensive!
Glenda
Glenda