There are many sites online to purchase affordable dog food that also has good quality. Some of those sites are petco.com, k9cuisine.com, and many more.
You can find the cheapest warmers on Amazon.com or stores like Lowe's, Home Depot, or Walmart. I think that the best food warmer is a regular microvawe.
There are many varieties of food dehydrators ranging from the very expensive to more affordable. You can check American Harvest dehydrator. It will be good the start.
By migrating to areas which were warmer and contained food.
You can find food warmers at Walmart, Kmart, Meijer, or Bed Bath & Beyond. They are reasonably priced and they come with one warmer up to a set of three. You can also find them online at the above sites.
In-car food and beverage warmer
You can find a quality food processor at Walmart, Kmart, Meijers, and Dollar General. You can also order a food processor on the internet and have it shipped to you for a low cost.
You can find affordable concession trailer anywhere. Just try going to target or walmart. They may have smaller ones you can get for cheap for snacks to sell.
To make the cold food warmer one can reheat the food in the microwave oven for few minutes or keep the food in the toaster oven.Electric food warmer can also be used.
Quality cat food in California can be found from a website called California Natural Pet.
Obesity is more related to the quantity of food that you eat, than the quality. The poor in America tend to eat a lot of fast food. Many types of fattening food are quite affordable.
The migrate to get the warmer weather. Also, in winter it would be much harder for them to find food.