What other public service institution can you go to for help? Of course, it is your local library. You would be surprised at the people who don't know this. Now it is important not to get to them too late in the season. As they say in the commercials - supplies are limited. Last year, I waited a little too long to get my forms and we'll I was making some phone calls, but I tracked down what I needed.
So be sure to push this little point to your friends who like to do their taxes on their own. There are people out there who just think that libraries are just books and no idea of the other services which are available to them.