Playdough and water play is so much energy for me to do, lol!! All of that cleaning up.....
I hear you ... they'll often ask if they can do drawing or painting or something and I just cringe because I know how messy it's going to be (and that there will inevitably be fighting!) T is getting her 2 y-o molars right now and so she's sleeping quite poorly... most nights only sleeps solidly from 12-5am. I put ABC Kids on and try to nap on the couch for about 10-20 minutes. Somehow that just helps to recharge a bit. They're both generally good about leaving Mummy alone because I'm resting. Saying that, today they were climbing all over me and wanting cuddles and attention and I ended up being more irritable than I would have if I'd not tried to sleep!

Hope the rest of the week goes well for you!