Some famous football coach once said preparation is half the battle, or something to that nature. Same goes with steak. The more time you put in upfront, the better the end result.
When you need to sauce, mop or baste your meat evenly and successfully, you'll need a silicon basting brush. Notice the word "silicon." It's easy to clean, heat resistant and great to use. Much better than slopping sauce out of a bowl.
Before and after you grill, make sure you use a brush hog. They do the dirty work, but it's vital to great-tasting steak. Make sure you get either brass or stainless steel and start cleaning your grate. And be sure to hose it down every so often to keep it kinda clean.
This one will save you. Trust us. Some people try the "pick it up" test method and some try the "thump the tank" method but those people also hold up umbrellas when it's lightning. Get a gauge. Watch it. Change when necessary. End of story.
Toss some cooking oil on the end of these bad boys and wipe your cooking grate down. Not everyone believes in this technique, but it works. All hail the gods of cooking oil.