L.L.
I have a child with Celiac disease.
The best thing I have found is to simply concentrate on whole foods...meat, fruit, veggies, dairy, rice, eggs, etc. They are (for the most part) naturally gluten free and things that an entire family can and will eat.
For replacement products, I prefer rice pasta over corn pasta because it's not as sludgy...you will see what I mean...and I think it tastes better. This is a simple preference, however...some prefer corn.
The best gluten free bread I've ever tried is called "Goodbye Gluten" and is better (IMO) than regular, store bought bread. It's soft and tastes like a fresh loaf of homemade...super delicious...and nothing like any other GF bread on the market. It has a very short shelf life, however, so I generally buy Udi's to stick in the freezer.
I make my own "cream of" soups for a cost of about 10 cents a "can", vs. buying the incredibly expensive GF soup to use for cooking.
I like Kinnikinnick brand of everything...frozen waffles, pizza crusts, etc. If you want those things, that's the brand to go to!
The Synder's GF pretzels taste like real pretzels...the Wyler's/Ener-G taste horrible and are hard.
Cereal...well, Chex is the go to, but if you like kiddie cereals, Fruity Pebbles are also GF. I have tried a lot of specialty GF cereals and don't like any of them, honestly.
I bake most of our cookies because GF cookies are expensive, and really not that great. I have a lot of recipes, but recipes are easy to find online or at the library.