Girls...you know this matters ;)
White and Blue Gi = Normal
Black Gi = Bad Guy
Red Gi = Crazy
Purple = Twee (as in a 12-year-old girl with Justin Bieber notebook)
Pink = Crazy (as in 'Lady, you better choke every single person in this room if you are wearing a pink gi')
So decide if you should stick with a white, blue or even black gi, especially if you are just starting out. Walking into a gym with a new hot pink gi and a white belt will makes you a target for the seasoned blue and purple belts....and there isn't anything more delightful than choking someone in brand new gear?
*Do purchase a Brazilian Jiu Jitsu gi if you are training BJJ. A Judo or Karate gi simply will not suffice.
*Do find a gi that will fit your body. If you are on the line between two sizes, order the larger size, just to be sure, and shrink to fit*
*Do choose a color and style that you like. Remember, a good kimono will last you several years and will be your constant companion. Choose wisely.
*Do save your pennies and buy a quality gi.
Thanks to Puglista for this fun info.