A lot of people like to use high heat settings with their non-stick cookware. That is an absolute no-no. You should never use high heat because the heat will reduce the effectiveness of the non-stick coating which means you'll have to throw that pan away in six to seven months. You want a pan with high weight, the heavier the pan the better the heat distribution and the longer the life of the pan.
Another non-stick evil is abrasion. Now any pan that you have that is non-stick you don't want to scratch it, especially with food cutting items like a knife, because you'll cut through the non-stick coating. Circulon has a great solution. Circulon pans have grooves on the pan where the non-stick material is actually on the bottom of the groove, so with a light touch, you can use metal cooking utensils. But for the best results, you'll want to use nylon cooking utensils in any non-stick pan.
Never use non-stick spray on a non-stick pan because it's going to cause oils to build up that you won't be able to get out and you'll have to throw away the pan. To protect against build up you want to clean your pan after every use and with a non-stick pan that doesn't mean just wiping it off. You want to use soap and water and maybe a brush or a scotch bright pad. Some non-stick pans are now dishwater safe so you can put them right in the dishwasher.