Pre-measuring is one of the best tips to give anyone. It makes it so much easier. Usually it is the prep time that takes the longest. It's also a great idea to do some of the prep the night before. If you are having a family dinner or some sort of entertaining, it just makes it a lot less stressful to cut up your veggies, defrost and marinade your meat overnight, toss up a salad, make your dessert all the night before, so that the next day all you have to do is throw it all together and pop it into the oven or whatever. This way you can spend more time socializing with your company rather than slaving away in the kitchen <img src="/images/graemlins/wink.gif" alt="" />
I also use the tin foil and spray when baking anything in the oven.