the African Flower motif-- I'll definitely use the join-as-you-go method-- so much easier for joining hexagons! (Really, any non-square motif. Works for squares, too, but squares aren't much trouble to join afterwards, either.
Use chic colors in your afghan crochet when you make the Gray and Pink Flower Granny Square. This crochet square is a charming pattern that will look great when you crochet several of them into an afghan.