Weights & measures, such concrete things. If something weighs a pound, charge the person for a pound. If it weighs less, do not charge them for a whole pound. Be Honest.
One scary things about honesty is that before you can be honest with a person, you have to first be honest with yourself. As a Christian, before you can be honest with God about admitting your shortcomings, your sins, first you have to admit them to yourself. Go to your secret place and be honest with God about your fears, hopes, dreams, sins, desires, needs, everything. Be rewarded with the peace that only He can give!