In the offseason and leading up to the show I always use a womens' electric razor; this is great if you have a lot of body hair, sensitive skin, or get ingrown hairs, it gets real close but does not get below the skin, I always shave my arms with a Mach 3 and my whole body the night/day before a show.
You should for sure tan at least a month out to where you get as dark from that as you can. You will also NEED comp color, I suggest Dream Tan (I like the brown/bronze formula), I have used Pro Tan and JanTana as well but don't like how they stain your skin for a long time and dry it out as well. If you got questions PM me...