It’s the bane of white tee shirt lovers everywhere—fabric discolouration due to perspiration. Frugalbits asked an international expert how to remove this pesky stain—and he told us what to do.

DO IT YOURSELF | Many general stain removal charts do not even include underarm perspiration as a category. Google “how to remove perspiration/ deodorant stains from clothing” and you’ll find a confusing number of disparate solutions. If there’s a rule of thumb for dealing with this universal problem, who could rightfully claim to know what it is: Martha Stewart; Linda Cobb, the self-proclaimed Queen of Clean; Heloise? Learned as these ladies are, they are home-keeping generalists, not laundry stain specialists. For the definitive answer, Frugalbits asked a leading light in the stain removal industry. Read more