Here are my top grill accessories.   These are the ones that really make my life of grilling simpler. 
Top 10 Accessories 

Tongs - I own about 5 pair of 12″ locking tongs.  I will usually use 2 in any given grilling day (I am not very good about cleaning as I go). The longer ones are just a bit too long, and difficult to manage large cuts of meat.  Since their are locking, I can lock them and they will stay in my pocket easily.  Never turn your meat with a fork as you will lose valuable juices.  Not sure where I got these, but they are dishwasher safe.

Grill Light – Most of my grilling is for dinner.  And during the winter, this means that I am cooking at night a lot.  Cooking by flashlight or squinting under the back patio light just doesn’t cut it for me.  I really want to be able to have great visibility of the stuff I am cooking.  My island has a nice outdoor light that keeps me cooking into the night.  Plus, if you have a workspace on your grill or grill island, you can cut up your veggies or prep other food under this light.

Wire Brush Grate Scraper – You have to have one of these.  My current brush is stainless steel, and although I have owned brass before, I am not sure I can really tell the difference.  This works well for scraping off the majority of the drippings burnt onto my stainless steel grates.

Disposable drip pan – For indirect grilling, I use these a lot for stuff like prime rib roast, chickens, turkeys, etc.  I remove my grill grate and place it between the grate and the burner.  This way, I can place the meat directly on the grill grate and let it drip into the pan.  I often will put beer, water or some mixture in it to help keep things moist inside the grill.  It also prevents a huge mess under my grill even though I have a drip pan built in.

Platters – It makes for fewer trips into the kitchen if you can fit all the steaks and veggies on one big platter.  Anyway, my kids made me 2 of them, so I really like them.

Kitchen Syringe (Injector)- This is a must have for chicken and turkey.  These really help keep the meat moist and allow you to get spices inside the meat.

Meat Thermometer – When it comes to big cuts of meat or full birds, you really need one to determine doneness.  I also have a fancy $50 remote thermometer, but I don’t really seem to use it except for on the turkey.  But, today, I just bought a new thermometer that you leave in while cooking.  I will update after I use it.  

Racks and Baskets

• Fish Basket – Great for helping your fish from sticking to the grill.
• Beer Butt Chicken rack – This is a must have.  I never thought I would cook so many whole chickens on the grill.  Make sure you get one that will keep the can from falling out of the bottom of the rack. 
• Rib Rack – I actually thought these were silly until I cooked corn and ribs for 15 people.  These racks help you get more ribs on your grill by standing them up on their edges. 

Grilling Pan – These are great for grilling smaller chunks of veggies or meat and even shrimp and still allow the flames to come thruough the pan.  I have a favorite shrimp recipe that I will share in the future where I always use this pan.  Make sure you get one where the handle is as close to the base and horizontal as possible.  This way, you can close the lid on the handle while you cook.

Beer – Half the fun is having a beer while grilling!

- GrillDude