I keg, but I've found the Coors quart screwtops (same as the bud) to be really convienent for keeping two pints in the upstairs fridge, or for transporting a couple of pints.
I just fill the bottle with my
BMBF, and screw the cap on tight. If the cap gives out, I'll drop $1.79 on another quart of Coors (which I still enjoy after working / mowing the lawn).