Here is a list of items that sometimes contain gluten. You can always call the companies to ask for sure. Just look out for these products.
Chewing gum/mints
Gravy/Dressing Mixes
Lip Conditioners/Lip glosses
Lotions
Medications
Shampoos/Conditioners
Soaps/Body Washes
Soups (almost all soup you buy at the store, is not GF)
Toothpastes (Crest, Colgate, and Aqua-Fresh are okay)
Make-up (mascara moslty)
Nail Polish
Hairspray/Hair Gels