CrossFit essentials: 1. Dumbbells - the heavier, the better 2. Kettlebell - if it doesn’t look like you can use it as a weapon - it’s not heavy enough 3. New custom Nike shoes - it’s proven they give extra horsepower. Especially if you write “Keep going” on them. Basically then you have no choice, because you said so. 4. A cat RIGHT IN THE MIDDLE OF IT.