Grid patterns should be considered a classic piece. In my eyes it is should be in your closet as a basic piece. Just like a stiped shirt of graphic tee, a grid shirt or dress should be right along with all of your go to clothes. Grid clothing can be mixed an matched with other patterns such as a plaid shirt or a patterned or floral skirt. I love the look of both horizontal and vertical lines together. When you are wearing only horizontal stripes, a shirt may be considered unflattering, however, with the combination of vertical lines, that lengthen your body, this pattern looks flattering on anyone.
Here are some of my favorite grid patterned looks from Forever21.