I’m planning to travel to Switzerland, Austria and Czech Rep this summer via train from UK. One of the cheapest options is to buy the Global Pass, which is only for European residents. However I’m not a European resident, which means that I need to find another cheap options to travel. Can anyone give any suggestions?

I planning on backpacking across the United States. What are some cheap options for feeding myself over 2 months on the go? I will carry everything in my back pack, have frequent access to supermarkets and infrequent access to a kitchen.