Which is why, on a day as hot as this, with barely working a/c, I'm now wearing a plain black (no print) bandanna tied at a rakish angle and spread slightly to hide a fairly wide area of tiny spots. The scarf is even newer than the top, since I purchased for this express purpose.
I'm the receptionist. I can't sit here with a visibly stained top. The bandanna, however, only cost me a buck and will probably come in handy anyway, and the top is cotton, which means it will get clean.