Regularly change the aluminum foil on your angled drip pan(s). This will reduce the likelihood of grease fires and flare-ups.
Spray your grease catch bucket with vegetable oil spray. Then, when you're ready to empty it, the drippings will more easily slide out. Take a wad of paper towels to swab down the inside of the bucket. In hot weather, empty the grease on a more frequent basis---so it doesn't turn rancid. Easier still ... line the bucket with aluminium foil.
The easiest way to clean your porcelain coated cooking grids is to take a piece of aluminum foil, scrunch it into a loose ball and rub it over and between the grids. This is best done when the grids are warm. Be careful not to burn yourself! Use a long sleeve barbecue mitt to protect your hand and forearm.
Each month, while your grill is cold, remove the cooking grids, angled drip pan and U-shaped firepot cover and give your grill a good cleaning with a vacuum cleaner. Vacuum out the pellet ash from inside and around the firepot and bottom of the cooking chamber. Use a vegetable brush to knock-off built up scale on the inside walls of your barbecue.
The easiest way to clean your cooking grids is to place them inside your self-cleaning oven and turn the knob to CLEAN. Both the oven and cooking grids will be clean as a whistle, without having to use a lot of elbow grease. This is especially useful if your cooking grids are encrusted with food deposits. Some of the grids will also fit into your dish washer.