Aftercare is equally as important as preparation when it comes to self-tanning. Rinse your hands immediately after application to avoid orange palms, but otherwise, avoid any wetness to avoid streaks or patches. Most instant or overnight self-tanners will require you to rinse only after you’ve waited for the allotted amount of time (typically around four hours). Until it’s time to rinse, it’s a good idea to wear loose-fitting clothing that won’t smudge or stick to the product. Avoid body washes and moisturizers with active ingredients to help the tan last longer and keep it from getting patchy.