I use a booth for spray tanning and love it. Here are my observations/tips: 1. Spray tan solution only runs if you didn't let it dry thoroughly before getting wet. Once you have showered after each tanning session, it shouldn't run or stain (or only very slightly. I'm a sweat-er also and haven't had much of a problem). Also, it contains a bronzer, so you will see an immediate result that will only intensify with time as the tanner kicks in. 2. Because you have to let it dry as long as possible before showering or sweating (I think they suggest 6-8 hrs at least), I go at the latest possible time in the evening and sleep with the solution on and shower asap when I get up. When all of the sessions are done, I wash the sheets/pillowcases and have never had a problem with stains. 3. For a comp, I go three times. Say I have to travel/be ready Wednesday. I would go Sunday evening, Monday evening, and Tuesday evening. If I didn't have to be wherever too early, I would skip a day in there somewhere. 4. It will last for a week or so if you have exfoliated properly before you started. However, your skin will look like you have a disease as it starts to fade. Don't be alarmed! I don't think it is noticeable to most people and ballroom people will know exactly what it is 5. I haven't had an actual person spray me, so I don't know what they do for this, but in the booth scenario, there is lotion available to help block any places that suck up the solution worse than others, esp. between the fingers, around the elbows, the palms of your hands, etc. Be sure to wipe those areas right away when you get out. Don't worry about wiping the solution off- you will still tan. This is where an actual spray-person would come in handy. Good luck!