I'll keep adding to my list here, and provide links when I have time to do so. These are the products I sometimes buy (keeping in mind I have a ten year old gf daughter!)

Kinnikinnic bread, bagels, pizza crusts, cookies

Bob Red's Mill Brownie mix (this is excellent, GF/CF, and uses Ghiradelli chocolate)

Mi Dels gluten free Chocolate Chip Cookies
Mi Dels gluten free Arrowroot Animal Cookies

EnvironKidz Crispy Rice Bars
Godiva Bliss Bars

Perky's Nutty Rice Cereal
Barbara's Brown Rice Crisp

Tinkyada Brown Rice Pastas
Bi-Aglut is excellent, too, if you can do corn based (many find corn to be a problem too)

Scharr's Bread sticks (these are really pricey, but my family decided they are worth it on occasion)
Scharr Crackers

Blue Diamond Nut Thins
EnerG Wheat Free Crackers
EnerG Wheat Free Pretzels

Herb Ox buillion cubes are gluten free
Kitchen Basics Stock is gluten free