Christina Mayo of the Miami Herald writes: When MAST Academy sophomore Jaïm Steele set out to find “a simple solution to a neighborhood dilemma,” our community was a simpler place. In early March, the initial project featured the little poo emoji on stickers for trashcans. The stickers allowed Coconut Grove dog walkers to see whether it was OK — or not — to deposit dog poop bags in the residents’ curbside bins. Read the full article here.