When I wax myself instead of going to a salon, I use .........
Sally Hansen Extra Strength, All-over body wax Hair removal Kit - Exclusive Brazilian Formula. It's about $10.
I've tried quite a few different waxing kits and this one works the best (for me). You get a lot of wax so that lasts a long time but I have to buy extra paper strips and wooden spatulas as time goes by. I get strips and wooden spatulas at a beauty supply store (Sally Beauty Supply) for a few bucks. Popcycle sticks work good for women's parts since they're more narrow than the spatulas that come with the kit.