Here's what I do for WBTB's, most of them were by accident. But here's what I do. I drink a lot of water before bed. About half a glass. Then when I wake up I write my dream down, goto the bathroom, do a couple of reality checks, and do some mantra's while dreaming. Such as "I will do a reality check, I will do a reality check, I will do a reality check, etc." Some say WBTB's give an increase of doing a reality check while asleep by about 60% and I think that's absolutely true.