I find that I can never have too many white tees. And I've also come to the realization that the cheaper the white tee the quicker it gets retired to my slub/workout drawer... I'm sure it's the one place my hanging clothes fear the most.
JCrew has always been my go to brand for tees, their vintage cotton v-necks have never steered me wrong, but I'm in the mood for something new... So Everlane tees and long sleeves, you're welcomed to my closet.