How many domain variants?

I currently have two domains, one of which redirects to the other (or will, once I’m finished with my Great Website Rebuild). However, I’ve noticed that people consistently misspell my last name as Bass instead of Baas. The domain name for jaynabass.com is available. Should I go ahead and get that one too just in case? If someone searches “Jayna Bass,” my existing website comes up first, but that won’t help if someone types jaynabass.com directly into the address bar. How excessive should I be about domain variations?