The major determinants of how much you spend on a trip is where you're going and how long you'll be there. Public transportation is by far the cheaper and more convenient choice in most instances. When I was in China for a month, I bought groceries and made sandwiches for snacks and breakfast. Our hotel was definitely not the best digs, but we had our own private bathrooms and although tiny, the space was adequate for sleeping. My friends and I also limited the nights we went out to bars . . . alcohol was expensive relative to everything else!
We also found that doing a lot of research ahead of time helped budget the trip better. I bought a travel guide and each of us looked at multiple websites about attractions and events a week or two before we left.
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