If you choose to buy nothing tomorrow on May Day to show solidarity with fellow workers of the world, more power to you! If, however, you do choose to buy something, try this list of American-made products published on the United Food and Communication Workers International Union's (UFCW's) website. It was interesting to browse through and see what's available, but it would be even more helpful if they linked to the website of the business so you could go straight there and see where the product was being offered in your area.
Note: While I was doing labels for this post I realized that today is the beginning of National Bike Month, so I'll have to do a post on that, soon!
Got the neat graphic from here.