I avoid the treadmill and go to as many classes as I can. I have found Zumba to be a terrific workout AND fun! I actually look forward to going to the gym rather than talking myself into it just because "it's good for me". Zumba also includes music...Latino rythmns that make your body want to move. My favorite gym is Spada on Mcgregor...I can do Zumba Mondays, Tuesdays, Thurs. nites at 6:30 pm and Saturday mornings at 11 am. I also can do a combination step and weights class on Sunday morning at 10.