it's in your hands

Value is attached to each hand. Your left hand is for the ‘dirty work’ and your right hand is for all things good. Your left hand is for washing yourself and you use your right hand to feed yourself. So if you are handing someone food or money you always give and receive these things with your right hand. This rule is not a stickler, but to hand someone something they ask for with your right hand is considered polite, good manners.
My gran sends me lovely packages periodically. Sometimes she sends spicy treats and sometimes sweet ones. Usually it’s too much for just me so I take some to work and basically hand it out to anyone who does or does not get home food.
Recently I mentioned to a colleague that another package is on the way and he said, “More power to your grandmother’s right hand!”