bikini body mommy!
This, or Kayla Itsines! Seriously, these workouts are like Crossfit metcons, just without any equipment. One I like in particular is the NYT 7 minute workout timer, http://www.7minuteworkouttimer.com
, because no equipment is required, and my baby enjoys being held for some of the exercises, or watching me do the others.
Body weight strength equipment like a pull-up bar and rings are fairly cheap and easy to install at home. I don't have a solution for lower body, e.g., squatting and deadlifting.
I ditched the long weekend bike rides and hikes and replaced with carrying the baby (in a carrier) for 1--2 of his naps each day at the weekend, and combine this with errands so I get some good miles in and can be carrying a lot of weight. Next step is having him nap in a bicycle trailer. This also gives Mom a chance to catch up on sleep without any disturbances.
The key is efficiency, otherwise it just won't happen.