If soft hands is really your goal here you go. Go to your drug store and buy some Bag Bomb. It comes in a little green square tin and about $12.00. Take a pair of white socks and cut them off from the top so there is enough room to fit your hands put the Bag Bomb all over your hands then slip the socks on and go to sleep. The next morning your hands are soft.
Soft hands can be just genetics, but if you don't have those genes try using a good hand lotion whenever you can. Also the less water activity your hands get the better they will be, of course not saying that you shouldn't wash your hands.
Take a tablespoon of sugar and a quarter size drop of hand soap add a little bit of water and scrub your hand this sugar will exfoliate them and get off all the dead skin scrub for at least 3 minutes then rinse, dry, and moisturize