Steve, sorry for asking so many questions!
But I gotta ask…Might be a dumb question too. If I can grab a facebook page that has my website name should I do that for promoting my t shirts?
If you have the time to manage it, it’s a very good idea. For one thing if you get some followers and those people like or share your posts you may get some direct sales with no advertising fees. Secondly, having links from Facebook to your website will boost your organic SEO (increase the likelihood of people doing Google searches finding your site for free). Finally, Facebook has some very powerful advertising feature that can be used. I will write an article about that later.