Use a lotion applicator with a long handle
Apply lotion to a clean, dry back after showering
Put lotion on a clean towel or plastic wrap and press your back against it
Use both hands to reach as far as you can from each side
Ask someone else to help with hard-to-reach spots
Use a spray lotion for easier coverage
Apply lotion in sections, starting with the center of your back
Use a mirror to check missed areas
Wash your hands after applying lotion