No More Deodorant Marks

I hope to wear a gorgeous black dress on Valentine's Day, but I'm nervous that my deodorant will leave white marks.

Don't sweat it! What you need is a water-based solid, which, unlike the traditional wax-based variety, won't build up on skin and leave behind residue. Mitchum Smart Solid for Women promises to work sans staining. If it makes good, my guess is it will have them lining up at the drugstore.

What do you think?