Grammar school and colleges, I always did my homework quickly, and often early. (Don't you hate girls like me?) In High School, I had burned out from working like a dog in Grammar School, and honestly, getting nothing but harder classes in High School to show for it. I rarely did homework in High School, and spent most of my time getting high and getting laid.
I straightened up in college (well, I still got laid a lot, but not so much the getting high) and realized it was again important to do things properly as I wanted to graduate with good grades and with an Honor Society stole (hell of a lot of good it is doing me now. All that and still unemployed. Home business dead and nothing on the horizon.)
I hate being behind, so I would usually do my homework immediately. I can say in all of University, and my grad work in Lactation Consulting, I did the work right away and never pulled an all nighter (I mean, while studying.) I hate things hanging over my head. (Like an article I have to write for EdenCafe and two videos I have to do.....which I haven't done yet.)