Back again!
I know geckos are supposed to have a little stick to them, and mine doesn't have any at all. He can't climb his walls, and when he jumps off my hand into his leaves he falls down (back on to my hand). When he crawls around on my arm he slips off sometimes and I need to catch him. I was told that I might be spraying him too much, but now I spray him twice a day, morning and night. I give him about 6 sprays when I wake up and about 10 sprays when I go to sleep.
Does anyone know what might be causing this?

