Fill a large pot with water
Add salt, Old Bay or seafood boil seasoning, garlic, onion, lemon, bay leaves, and optional cayenne
Bring the water to a rolling boil
Add potatoes first and cook until nearly tender
Add corn and cook for a few minutes
Add sausage and cook until heated through
Add crab, shrimp, mussels, clams, or lobster according to their cooking times
Cook until seafood is just done
Drain the boil
Spread everything on a table or tray
Toss with melted butter, garlic, and extra seasoning
Serve with lemon wedges and dipping sauce