Travelling on a budget is certainly very fun way if you are young and active. I too used to travel on shoes-string budget when I was in my teens and early twenties. With just a few good friends, we will pack ourclothes and just go off somewhere whenever we have a few days from work.
Therefore, if you are one who loves sightseeing and see the world, then, you definitely will be pleased to hear about Bed and Breakfast which offers a wide varities of inns all across the United States like California, LA and etc. Some of the inns are so lovely I wish I can just throw everything and pack my back and head across the country.