Etsy shop coming?

 I made a business card! Muahaha!

Well, my husband and I have been talking, and an etsy shop may be coming soon. However, both of us are concerned about shipping, taxes, etc. I have been researching the help articles on the website like crazy, but I'm still kind of unsure about what to do. So here is my question.
Would anyone that has experience selling, buying, etc. on this site be willing to talk to me about it and share what they know? I would greatly appreciate the help with this, because I would love to do this, but I can't if I don't know what I'm doing.
Also, any input on the business card would be lovely. I've been working on a couple of designs, but this one is actually the farthest I've gotten. :) It's kind of a rough draft, and I'm definitely going to put up the other designs as well as I finish them, but am I going in the right direction?

Thanks much,

--Jenn--