Creating clothing templates on photoshop


Hi there everyone
I am wondering if anyone knows how to make good clothing templates as I want to design some clothes for a bit of fun, for the last couple of years I have been waiting until wimbledon or something when all the clothes are white then getting the drawings of erasing the nike logo (or whatever). But anyway, now I want to make my own and give them some of my own personal touch.
I only have photoshop though, I don't have illustrator anymore, but Im hoping that won't be a problem.
If anyone can help instruct me on what to do all help is greatly appreciated.