One Colour At A Time Please :)

I do not know how this started but when I go out shopping I only by one colour at a time. It started with white pieces then I moved onto peach and now red. 
It is so much easier to shop, I find it narrows down my search and helps me focus. Stores like Forever 21 have a copious amount of apparel scattered throughout their store, so to eliminate the clutter thats happening on the floor and in my mind I search by colour concept. For example, If I am searching for the colour red I instantly  get tunnel vision, nothing else enters my line of vision other than red apparel. This process only takes place when I am by myself, which I find is the easiest and most efficient way to shop!!