A good steak marinade recipe can transform your steak. Some people like their marinade spicier, others prefer it sweeter, and some might even prefer it tangier.
1 cup of olive oil
1/2 cup of soy sauce
1/2 cup of red wine vinegar
1/4 cup of fresh lemon juice
1 tablespoon of Dijon mustard
3 tablespoons of Worcestershire sauce
1 tablespoon of freshly-ground black pepper
1 tablespoon of salt
1 clove of minced garlic
Combine all ingredients and let the steak marinading overnight. For better results, use the leftover marinade to baste the steak while cooking it.
From that base recipes, you can easily add ingredients as you prefer. One example would be cayenne pepper and chili powder for a spicier flavor, teriyaki sauce and brown sugar for a sweeter flavor, and so on.
The best recipes are the ones you develop yourself.