When it comes to cardio I'm screwed haha. I really only do a couple exercises but they seem to help, because I notice the difference if I don't. I dont know what theyre called, I think leg lifts. You stand up straight flat on your feet and lift your heels until you are standing on the balls of your feet. Then back down to the ground and repeat until legs burn. I also do it on our bottom step sometimes because you can dip your heels down below the stair and then you have to lift up higher from the bottom, using more of your muscle. I just do it until my legs get tired, and never really keep count of the reps. If you do it until it burns a little bit, it's helping, overdoing is worse than not doing it at all. I also stretch my muscles twice a day. Nothing too big just about 5 minutes of your basic stretches when I wake up and when I go to bed. I am also relatively poor so I don't over eat lol.