1. Grill cover
2. Second propane tank. Lifesaver when you're cooking & run out of fuel...just swap it out & get back to cookin', then go & refill the other one at your leisure. Nothing is worse than having to finish cooking your food in the oven once you've started it on the grill
3. Oven gloves. More of a pain to use than oven mitts, but you can work with your fingers better, like if you have to hold the inside of the lid or something. I have these:
http://www.amazon.com/Grill-Heat-Aid-Resistant-Light-Weight/dp/B00CHO64NE
4. Meat claws. Useful for both grabbing hot food & shredding meat: (ex. pulled pork)
http://www.amazon.com/Pulled-Pork-Meat-Claws-Kassa/dp/B00G4SCGNQ
5. Wireless temperature probe. You can set it to alert you when your meat has hit a certain temperature:
http://www.amazon.com/Ivation-Long-Range-Wireless-Thermometer/dp/B00ANCXJR6
6. Nonstick grill spray. Same idea as Pam, but you can spray it right onto your grill after it's lit up & hot: (won't explode on you)
http://www.amazon.com/Weber-GrillN-Spray-6-Oz/dp/B00Z75FWSS
7. Cast-iron press. Useful for stuff like smashburgers, paninis, etc:
http://www.amazon.com/Update-International-Heavy-Weight-Hamburger-Commercial/dp/B002LDDKZ6
8. Some kind of metal surface - a cast-iron skillet (go with a 12" if you wan to use the press), a cast-iron griddle (reversible - grill marks on one side, flat on the other), a Baking Steel, etc. If you want to do pizza, also pick up a pizza stone (unless you get a big flat plate like a Baking Steel, which can do double-duty). Look up Fibrament boards if you want something custom-sized for your grill. You can do a bunch of stuff with these...smashburgers, searing, breakfast foods (pancakes, eggs, bacon, sausage, French toast, etc.), warm up tortillas (or make tortillas!), etc.
9. Misc. utensils. I usually just buy a cheap grilling pack that has some sort of skewers, a grill scraper, etc. Oh and tongs. Any metal grabby tongs work fine, like this:
http://www.amazon.com/Pinch-SPRT-9-Spring-Tongs-9/dp/B011V3EVUO
10. Websites. Tons of stuff to try. Here are a couple:
http://amazingribs.com/
http://www.seriouseats.com/grilling
If you like fish, try out my 5-star Salmon recipe:
http://forums.anandtech.com/showpost.php?p=24270732&postcount=2
These are the best chicken thighs I've ever had:
http://asweetandsavorylife.com/grilled-or-roasted-spice-rubbed-chicken-thighs-my-go-to-easy-dinner/
Some other great stuff to try on your new grill:
1. Smashburgers (you flatten them down 5 Guys-style)
2. Honey-mustard chicken strips (the thin tenderloin ones)
3. Chicken cutlets (take a chicken breast, put it in a ziploc bag, smash the heck out of it with a rolling pin until it's 1/4" thick, then grill it with whatever sauce you like - BBQ, sweet & sour, etc.)
4. Thousand Onion Chicken (grill up some chicken breasts, pour Thousand Island dressing over, then top with caramelized onions)
5. Meatloaf burgers (tons of recipes online - makes a nice thick, juicy, SOFT burger patty)
I'm sure I'm missing some stuff, but typing this has made me hungry, off to find some food :awe: