As long as you’re at it: the postcard stamps are good only for postcards between 3.5 x 5 in and 4.25 x 6 in; a lot of postcards you see are bigger than that and will need a regular first class stamp.
For anyone doing this: USPS prices are going up on July 14th. Postcard stamps are going up from 53¢ to 56¢, & regular stamps are going up by 5¢.
I think you can order them at the old prices from USPS until the 13th. USPS sells one variety of 'forever' postcard stamp: store.usps.com/store/produc...
at least for the postcards to swing states effort I assume they're regular sized postcards since they say to use postcard stamps in the FAQ. good to know for next time I send an oversized postcard though
