Homemade Direct Mail Campaign

[Jarrod D Day]

Hi All,

My wife and I have created our own yellow letters after using a service which did not pan out very well.  After looking at their yellow letters and having our order scrambled, I decided to do it myself for this initial campaign.  So now I have over 100 yellow packages in bright envelopes, thinking I could go to our friendly neighborhood USPS store and have them shipped.  I fought through my apprehension in trusting government workers with such an important task (I included a test envelope in the batch, but still) but we proceeded anyway.  Long story short, the USPS employee kinda laughed and said it would take too long and they could do only 10 at a time.  A friendly customer in line at the time mentioned amazon having a service, but I have combed through my amazon prime pages and don't see it.  I've looked at UPS Store but they charge three times more per envelope which negates the most of the reason I'm doing this myself.  

Has anyone encountered this issue before and how did you deal with it?  

Thanks all!