I shut off the doors to the rooms I don't want Charlie in whilst in the shower, bring him into the bathroom & he usually stays & chats to me & plays with his toothbrush etc....if he wanders off then I know it's not too far. If he's too cranky I just undress him & pop him in the shower with me, he loves it & I get to have as long as I want. Though atm I am trying to get up when DH does for work & shower etc then before Charlie wakes up. I find I function better if I'm all fresh & feel nice.
I wash throughout the day, just fill up the basket & DH helps me hang it out at night. I always do dishes etc in the kitchen when Charlie is having a snack or playing in his draw or tupperward cupboard. He too love the vaccum cleaner so no probs there, clothes get folded when he's asleep & that's when I tend to my BB addiction LOL.

As for playing, any interaction will teach them. Even just simple telling them what you are doing, playing peekaboo...I often pop a CD on & dance around the room with Charlie like a dill & he loves it.