Start using public key cryptography to the extent possible in your private correspondence. Encourage others to do so. Help non-technical users get started with it.

Support your neighborhood CopWatch. If you don’t have a neighborhood CopWatch, get in touch with the nearest one and ask for their advice and/or help in starting one.

Write to public forums that don’t usually publish anarchist material, but where you stand a chance of getting published anyway, explicitly advocating anarchism. For example, a letter to the editor of your local newspaper. Include pointers to online resources where people can learn more about anarchist takes on the issue you’re writing about.

Find ways to get things that you need outside of the documented cash economy. For example, if there’s a Food Not Bombs in your town, you can get to know a bunch of other anarchists, do some mutual aid work, and, in the process, get some free food for your labor. If there isn’t a Food Not Bombs in your town yet, again, get in touch with existing FNB groups and try to start one. (There are lots of guides online.)

If you have it, I’d also recommend contributing some money to groups that provide direct relief and aid for victims of violence, and which combat cultural attitudes that promote violence. For example, I give a fixed percentage of my income to women’s shelters and groups like Women for Women International (which focuses on relief for women in war zones). By doing so I not only provide direct aid to real people and to a network of institutions which can supplant the supposed welfare functions of the State; I also remove that much more money from the taxed economy, and put it toward the purpose of healing and mutual aid, rather than what it would otherwise have been used for — graft, handcuffs, bombs, prisons, etc.