You could get a job. It's one of the (almost) inevitabilities of living in a capitalist society; we need to work jobs to make money to buy what we need to survive. There are several discussions here relating to what kind of jobs are more "appropriate" or "acceptable" to anarchists, if you haven'y already read them.
You can also steal. Either money or just what you require/want (though I discourage materialism). I've been living several months without anything to do with money through a mix of freeganism, squatting, taking what I need, using services that are already provided publicly, and mutual aid with others, both anarchist and non-anarchist.
