Here’s a great example of what Tamara Grominsky calls a “first purchase product.” A free or low-cost product you can use to get in front of your ideal customer before they’re ready to make a big purchase. This one in particular happens to also be a great tool for product marketers. It’s a free Total Addressable Market (TAM) Calculator created by Clearbit. A way to figure out what your TAM is without having to waste hours or dollars researching.