Can't get to the gym?  No problem!  There is ALWAYS a way to get in a great workout from home.  Take the guess work out of it by following this glutes and core workout.  For more intensity, add a weight as shown in the video.  I used a 20# kettlebell.  Don't have a weight?  Increase the reps, or if needed, go with the scaled version by keeping the same reps from original workout but ditching the weight.