Don't forget the great deal they have on mylar bags online, too. I ordered a box of 250 of them and have been very pleased.
I also frequented the DFW food storage warehouse. If you are visiting the first time, I'd suggest calling ahead to find out times of operation. They have particular hours when you can buy bulk foods (in the 25 lb bags, etc. for your own home storage) and other times when you can use their canning equipment for free. The first time you use the canning equipment, they will want to train you. You are expected to clean up after yourself each time you go there, iirc. No kids under 16 years old are allowed in the canning area. They don't accept credit cards at the warehouses (online no problem). You can go to the providentliving website and print out your shopping list before you go, which will make things easier when you get there.
The dehydrated apples are very good!