I kind of eat on a schedule now, but it happened sort of naturally. I was always really great at being able to go all day without eating often, and would eat more at night once I was settled at home. So, in the beginning I did have to remind myself to eat every couple of hours (not a lot, but something). Over time, my body has adjusted and it's now pretty automatic -I get hungry if I'm forced to skip something, which never used to happen. It's like I get cues from my body now that I never used to if I go to long without food.....which I think is what was "supposed" to have been happening all along!
I'm not a slave to the clock or anything, and if I really, really wasn't hungry and felt fine I wouldn't force myself to eat. That rarely happens, though, unless I'm sick or something - for the most part, my body craves that little bit of fuel every couple of hours now.