Oh, Freddy's bar, how I love thee.

Though Kroger, i.e. what Fred Meyer is depressingly becoming and QFC basically already is, officially bans tipping, you can spend long enough there that everyone ends up on break and you can hand them a "bus schedule" or similar informational pamphlet.  The fact there may or may not be cash in it, well, I'll never tell, Krogerian Cincinnati overlords!