Oops, forgot that if the deadline is Sunday or holiday, it's postponed to the next business day. So if you got it into the PO Sunday, the Monday postmark is OK. As you know, but other readers may, like me, have forgotten.

Thanks to inflation and fixed income, I now no longer have to pay Federal tax. I still have to file for the state of Oregon. It's a lot cheaper than if I moved to WA and paid their sales tax, though.