By Sono Motoyama
Pittsburgh Post-Gazette
PITTSBURGH—If you have a vegetable garden, you might have tried composting. But if you’re like me, you may have ended up with a slimy mess—or maybe a pile that just sat there and didn’t decompose.

PITTSBURGH—If you have a vegetable garden, you might have tried composting. But if you’re like me, you may have ended up with a slimy mess—or maybe a pile that just sat there and didn’t decompose.