Every day is leg day!
It needs to be the way we think about how important our legs are.
Workout your legs as much as you can. On days where you don't, make sure to do some active stretching, to keep making your legs strong.
Our legs have to be strong and mobile in order to cary our bodies around, ALL the time.
Here is a video to show you some great calisthenics exercises that will help you build explosive and strong legs.