Need help with some at-home programming

So I've been doubg CF 5x/week since the third week in July. I love it, my body loves it, but now that my son is in school again, it's really hard to get there 5x. If my box had a later class on Saturdays it would be fine, but they don't.

I was talking to a CF friend and realized I could do stuff at home on that 5th day - which is awesome, because there are skills I really would like to practice and improve on, specifically push ups and core strength. Does anyone know where I can get tips on what movements to do at home to help with that? Should I ask one of my coaches maybe??

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