[low weight] arm exercises too. I love this girl! (There's other workouts on YouTube). I do a lot of walking and am trying to get back to doing power yoga workouts by Jillian Michaels. Love her too.
Make sure to change things up when you get bored. If you don't feel like a whole yoga routine just do the bits you feel like doing, along with your cardio workouts. Look for remixes in my [CityChick] blog so you don't grow tired of your tunes.
Read the fitness magazines for inspiration & tips like July's issue of "Shape" magazine which Kourtney Kardashian covered. Reading is also very good exercise for the mind.
Make sure you're eating lots of vegetables & getting your protein. Lastly, drink lots and lots of water... and "just dance" as much as you can.