Cartoon genius Stephan Pastis, whose approach to writing Pearls Before Swine is an adroit balance of left and right brains, has talked about having a go-to character he relies on when the ideas aren't flowing freely. That is, a character who'll inspire him, who's personality is forceful enough that he or she will pretty much take over the writing chores. For Stephan it's Rat: of course it's Rat, the evil characters are always the most fun to write because they're the unconstrained ids who can get away with stuff.
I'm not sure I've got a real go-to character, but I've always got Petey and when he's lying on his bed reading and half-ignoring Alice's unwanted presence the writing is always pretty easy. And it's pretty fun to draw too. A few times earlier on I varied the perspective a little or showed the bed from the other side, but it usually works best shown as it is here. It's easier to draw and looks more iconic, "iconic' being a nice way of saying if you repeat an characteristic image often enough it sticks in people's heads.