I have enjoyed Trader Joe's for about ten years now. I am excited that there is a TJ in about every part of Charlotte. Here you can get some really good tasting healthy groceries and pre-made food (great for dinner in a pinch). I have recently purchased some really good wine as well for pretty cheap.
This is another store I will only frequent during the week or early morning on weekends. It is just too croweded on the weekends. This makes it hard if you are a new shopper or want to see everything they have to offer.
My recommendation is is you have never been, go during the week (not during the rush hour) or when they first open on the weekend. This way you will have the opportunity to look at products with out being in the way, or getting pushed put of the way, or most of all someone being in your way.