Popsugar Living Sustainability Uses For Old Coffee Grounds 15 Uses For Old Coffee Grounds 14 June 2018 by Tara Block View On One Page Photo 14 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 14 Worm-life lengthener Mix coffee grounds into soil for your bait worms to live in. The worms will live longer when nourished by the powerful nutrients in coffee grounds. Previous Next Start Slideshow SustainabilityBudgetUpcyclingFrugal LivingBudget TipsCoffeeDIY