Wow, I tried to navigate that USPS web site for the rates and it was all much too complicated and cumbersome for me -- you seemed to get some very good information from the website.
here's a question the Pudding Guy - or someone with a very large family - would be able to answer (I'm too lazy to research it):
If 100 members of a college fraternity (all living at same frat mansion address) did a buttload of test drives, could they then consolidate all the EC accounts into a "household account?"
Or does BA put a limit on the # in a household? SURELY they have some limit on how many members can be in one of their household account, right?