To give your shoe an overall roomier feel, try the parallel lacing technique. To start, lace the first two eyelets near the toe of the shoe. On one side, pull the lace up through the first eyelet and then straight across the shoe and into the eyelet directly across from it. On the other side, skip the first eyelet and pull the lace up through the second eyelet and then lace it into the eyelet straight across from it. Repeat this skipping an eyelet and lacing across pattern until the shoe is laced to the top. This lacing technique is a little tricky, so here is a link to a video that might help. (For other lacing methods see: Link)
My thanks to http://katierunsthis.com/ for this tip!