I didn't see this one anywhere. You can use modifier keys in combination with Hot Corners. Go to [System Preferences > Mission Control > Hot Corners] and when

I didn't see this one anywhere. You can use modifier keys in combination with Hot Corners. Go to [System Preferences > Mission Control > Hot Corners] and when you make your selection just press the modifier you'd like to use. I've always found hot corners too easily triggered, for me this strikes the right balance.