I always take something to eat. The last time I flew they declared a "no peanut" flight because of someone's allergies. Unfortunately the only thing I had with me was a peanut butter sandwich. Ugh. They offered a bag of Fritos which I don't like so I was pretty hungry by the time I got to my destination. From now on I will also take something nut-free!
It's funny you mentioned the Belvidas. I kept getting these for a while and I'm not too fond of them. I don't want to seem like I'm complaining about Southwest's snacks, because they're typically better than other US airlines.
But I'm curious -- does Southwest offer Belvida crackers and other items in partnership with the manufacturer or as a promotion? Sometimes you're able to pick from a variety of snacks (the Ritz cheese cracker are my favorites) and sometimes you get junky Wheat Thins or Belvidas.
Always a good idea to have some sort of snack and beverage with you when traveling on any airline. I have found on SW that all you need to do is ask - when an attendant has the oppotunity they will bring what you requested. Just be patient and polite, it goes a long way.
