It helps that we know that he responds really nicely to carbs, and with the switch to Levemir his dives aren't nearly as steep as they used to be. We're also able to test very frequently because there's nearly always someone at home. So we usually have at least a little warning, and can manage the low numbers fairly well. He's also very good about being tested (usually). This morning he jumped up on the table and practically demanded that we poke him so he could get some of the good stuff. (He loves his FF w/gravy!)
Right now it looks like he's heading for a bit of a bounce, so I might actually get to sleep tonight...