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Mother's Day gifts: 11 cheap and green ideas

Digital shower timer

Photo: Azul Conservation Products

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Save water

Make water conservation easy and fun with wall-mounted shower timers from Azul Conservation Products, which also sells shower curtains, bathtub plugs and handy collection buckets that collect shower and sink water for watering plants or whatever. Code MNN will get you 30 percent off your order through May 12.