You may want to get in line now for free Comic Book Day on May 2.
Find stores where you can get your free comic book and be prepared for crowds. Comicshoplocator.com is also a good place to find a comic store near you, and you may want to check with your local comic store to see if it's participating in the giveaway.
At the comic book store in my neighborhood, the free Comic Book Day has always been a hit and the lines are long for this great deal.
You won't need superhero powers to wait in line, but a comfortable pair of shoes will help.