I will try Kohls! They do have a good variety, considering all the different brands they stocks.

I think that the availability of teal can be somewhat attributed to stores like Forever 21, where the stock has a lot of variety in color and styles. I love that the stuff I buy there I hardly see anyone else wearing, even though it's such a big chain. :3

Oh my goodness! I know that feeling! It can be so addicting to buy tank tops when they come in so many different colors. Curse you, Old Navy and all your different shades of green, blue, and blue-green!