Whenever I find a cool free crochet pattern online, I like to make a diagram of it for fun. I like making little pictures and understanding construction through graphics.
Here's an example from Moogly's Fortune's Wrap.
Row 1 says to chain 6, dc in the 4th chain, chain 1 & skip a chain, then dc in the last chain. So I draw my little yarn tail, 6 chains, dc, chain, and dc. Sometimes I like to fade the colors of each step so you can tell what order you're doing things and what direction you're going.
Row 2 says to chain 6, dc in the 4th chain from the hook, chain 1 & skip the next stitch, then dc in the last ch so first I make that part in blue. Then you put a slip stitch, chain, double crochet, chain 1, double crochet in the chain 3 space from the first row, so I put that in a different color.
Woo so fun!