depending on where you are consider dumpster diving. if you have good dumpsters, you can survive solely on that. its not neccesarily comfortable, i mean in reality you are for sure going to want to buy salt and stuff like that at least, but you can survive on very little this way. if you have good dumpsters even if you have an income its nice to save some money this way, sometimes the food is perfect. where i live currently im blessed with amazing dumpsters, and i always at least check when im walking by. you can literally just find like a shitload of free potato chips sometimes, you enver know. some of my friends even found a six pack of tall boys once. but you can also find some nice meats, hot dogs keep especially well but depending on the climate you can sometimes get high quality shit, produce thats gone ever so slightly out of date, anything really. so not just junk food either although thats often whats most sanitary and accessible

it is potentially a great resource. and i think someone should eat all that shit anyway. at the very least a bag of donuts or whatever is a nice find if you cant afford any food