A great vintage/used clothing store that has a huge selection of boots as well as 50s clothing and all things western, from ponchos to spurs to cowboys hats. The prices are a little bit high, but good for Santa Fe, and if they've got a lot of harder to find items.
A cool little shop with all kinds of freaky little toys, gadgets, and santos. This store brings together some of the cultural oddities that make Santa Fe so unique and it is served up with a sassy attitude - you can find small metal milagros to help you heal maladies, or boxing nuns, or beautiful metal work birds.
Even if you don't intend to buy anything, it's an interesting place to pop into.
An annual market held in Old Town Plaza where artists from over 100 different tribes come to show and sell their work. It usually takes place the 3rd week of August (check the website for the exact dates each year). There are also conferences and exhibits.