Cloth napkins over paper is a no-brainer (cloth instead of paper for a family of four adds up to $12 savings per year), but you can also swap your paper coffee filters for a metal mesh filter (saving $8 this year after paying for the new filter, and about $18 annually thereafter), paper towels for dish rags (annual savings: $40), and memo pads for a mini chalkboard ($15 this year). Total savings: $75 (plus a lot of trees).
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