Use cloth rather than paper for cleaning and drying your hands. Before you grab for that paper towel to wipe up a spill or dry your hands stop and consider using a cloth towel or rag. Rather than throw away old ragged towels and cloth diapers that are no longer needed I keep some in a kitchen drawer and use them for mopping up spills.
After they’re used they just get tossed in the washer and washed with the rest of the laundry to be used again and again. Same thing with cloth napkins. Rather than reaching for a paper napkin, keep a supply of cloth napkins in the house – nice ones for guests and older or thrift shop purchases for everyday. Think of all the paper you’ll keep out of the landfill and how many trees you’ll save.