I joined a gym last month. I've been going pretty regularly, but I have to get up early to do so. That way, I don't have to bring along my daughter (she hates the "kids club" area) and I like to work out when it's not busy. Even though the gym is huge, many of the machines are in use later in the day.

I would find a time that works for you and try to stick to it. I find it's hard to go back to doing something once you get out of the habit. I think I've lost a little weight but it's been a struggle because I feel like my metabolism basically moves at a crawl after having my daughter. I definitely feel healthier though!