To start with the obvious, you've probably heard that squats will help lift your bum. Even though squats are a common workout move, there is a good reason why they are done in almost every gym or fitness class and why there are a million different ways to do this classic, effective exercise.
If the word "glutes" is in the name, it must be good for them, right? Glute bridges work all three of your bum muscles and can be done right on the floor (preferably on some sort of mat). When your hamstrings are tight, glute bridges are a great way to stretch them, so it's a two-for-one move.
Step-Ups are exactly what they sound like: you step up onto a box or platform that is higher than you. This makes your body longer and works your heart and lungs at the same time.
Start with your feet together and your right knee slightly bent. Put your hands on your hips for stability and lower your upper body out in front of you, keeping all of your weight on your standing leg.
The superman exercise works many muscle groups and makes you stronger all over, even though it looks like you're about to fall asleep on the floor.