This recipe by katycat is a great jumping off point for making crepes. However, two changes would make the crepes into the something sublime.
The first change would be to substitute the cooking oil with 2 tablespoons of browned butter. The browned butter will serve the same lubrication purpose as the oil and it will lend a very pleasant nutty flavor and a great brown color to the finished product.
The second change would be to mix the batter in a blender to make it completely smooth and then to let it rest for 30 minutes before using it. Resting the batter will allow the flour, eggs and milk to rise to room temperature and to completely mix. The best time to add the browned butter is after it has cooled a bit, and the batter has been resting for 15 minutes.