There's an app for that

So, I went grocery shopping today, and while I was at the store I was using my iPod touch for a few different things.
Mostly, I use it on the go because I can keep my shopping list handy with ziplist, and it works on the iPhone platform with Martha Stuart's Everyday food. Now, whatever you think of Martha herself, you can't really fault the quality of her recipes, and her "Everyday Food" recipes are more normal and call for less outlandish ingredients than her entertaining or holiday food-impressario recipes.
Ziplist will keep your list online, and on your iPhone, or text it to you (and you can text additions too). It categorizes things by department, and sometimes even knows what stores you shop at and how they're laid out, which is neat if it works for you.
Martha Stuart's Everyday Food  is handy, and gives a new recipe everyday as well as access to your ZipList and an extensive selection of searchable recipes. It's a good value for 99 cents.

But my favorite food app is actually the Monteray Bay Aquarium's Seafood Watch app. With it, you can select the region you're in (for me, oddly enough, it's Southeast), and it will help you make sustainable seafood choices. For example today, I had thought I'd do a good environmental thing and buy farm-raised salmon. As it turns out, wild-caught Pacific or Alaskan salmon are actually much better for the environment than the polluting fish farms, especially because Pacific salmon are" among the most intensively managed species in the world, with excellent monitoring of both the fish populations and the fishery."Here's the info on salmon, if you're curious.
I've used this app at the store and at restaurants, and try to make good choices about what I eat. It can be tricky sometimes to get the staff to tell you where a fish comes from, but if you ask they will usually make a genuine effort to find out.