1. Standing Calf Raises
These can be done with one leg or two legs. They can be done on stairs or any other solid
object. If you're in a hotel room, often a thick phonebook will work just fine.
Basically, stand with your heels off the edge. Let your heels come down then use the calves to push back up.
2. Full Range Calf Raises
In short, you combine both Donkey Calf Raises and Standing Calf Raises into one exercise.