How to Spell T-Shirts

Have you ever thought about just how many ways there are to spell t-shirts? That's got to be the reason for the hesitation before writing it. Who knows which way is the most common. Maybe it's the Macy's catalog type of spelling T-Shirt. Tee Shirt kind of jumps off the page, but the edgier, tees, might grab a bit more attention. What about going back to the beginning with the lowercase all the way across and blending the hyphenated t-shirt within the sentence? There are a variety of ways to go, but putting all the letters together, without a break like in tshirt, just doesn't seem right. The correct spelling of t-shirt is definitely something to research.