Basically, just that!
I need to exercise but I have a 2yr old and a 16 week old. Gym membership isn't really an option because of the cost (the cheapest around here is £40 a month plus a £25 starter fee). I don't have much childcare and when I do they generally only tend to take one of them 
DH is home in the evenings but after bath and bed and cleaning tidying etc there's nothing much left to give, so I'm hoping to do something during the day whilst on mat leave to get me motivated enough so when I go back to work, I can exercise in the evenings.
I just have no idea where to start so I never do 