Cash seems to have reverted to everything baby since the twins were born. He'll lay under their playmat, sit in the Bumbo (I'm sure all the while thinking, what's the big deal here?), etc. But two of his recent favorites are these:
Johnny Jumper: self-containing entertainment. If I want it to last even longer, I put a kids cd in the computer, play it through Media Player so it does the little laser show, and he's mesmerized and stays there even longer.
And let me tell you - that sink bath is money. Our living room/kitchen/dining room area is all just one big room. So when I'm by myself doing bedtime because Ryan isn't home yet, I can get the twins through their sink bath and then get them on the couch with their bottles while Cash is in the sink. I can clean up, burp the twins, whatever, and I don't have to waste that time just sitting in the bathroom watching Cash take a bath. Jackpot.