(Yes, I know they're ALWAYS going to be our babies. :) )
I think I'm in the minority here, but I find that in general conversation I still say things like, "The baby's sick so I need to go home." For people that don't know me well, they naturally tend to think I have a newborn or at least a crawler at home, definitely not a toddler. DD even calls herself a baby. Actually I should say she calls herself "Bay" or "Bee," depending on the day.
And if you feel like chiming in, I'm just curious, when'd you stop calling yours a baby?