Teriyaki -- marinade or sauce -- is a grilling staple. Kosher salt, mill-ground pepper, Worcestershire, teriyaki -- it's one of the basics.
It doesn't price like a grilling basic, though.
Seriously, check the tags on name-brand teriyaki sauces at various grocery stores. $3.99. $4.99. For 12-16 ounces.
The sauces: good. Their prices: lousy.
My recipe for teriyaki sauce/marinade will save you a ton of money on teriyaki, hence "Save-A-Ton Teriyaki Marinade." You'll also make a ton of it, and it keeps forever, sealed in a container inside your refrigerator:
3 cups canola oil
2 cups soy sauce
2 cups honey
1/2 cup tarragon vinegar
1/2 cup chopped white onion
4 cloves garlic
2 tablespoons ground ginger
Whisk the ingredients in a large sauce pan/bowl - no heat.