If you want something more structured than a simple meander of loops and whirls - the one I like is more angular - you go up, across a ways, down partway, across again (making a sort of square on a line) etc. slowly working your way across the quilt. You leave some areas you don't go as far down, or "gaps" that you can then fill on the next row, like nesting.
Or go to Urban Elementz website and browse their patterns - there are many that you can re-create yourself, and they also have peel and stick ones that you can put on your quilt, stitch and then tear off. (Or you can make your own using a thin paper like Golden Threads) - lots of inspiration out there!
Enjoy!