If basic Tabasco sauce isn't quite cutting it anymore, lots of folks like to try their hand at making their own homemade hot sauce. All you really need is a few chile peppers, onions, garlic ...
Cost Rican chilera is a fermented vinegar and vegetable sauce that is a little bit spicy due to the Tabasco flavoring. The chilera is often homemade (although you can find it in grocery stores now).