How to buy Ordinals in the USA?

How do I purchase Ordinals in the United States? I've been hearing a lot about this emerging cryptocurrency and its potential applications, but I'm unsure about the process of acquiring them. Do I need to use a specific exchange or wallet? Are there any regulatory considerations I should be aware of? I'd appreciate a step-by-step guide to help me navigate this process efficiently and safely. Additionally, what are some common pitfalls I should avoid while purchasing and storing Ordinals?