Watching the Energy

I've been watching my energy ebb and flow the past few days, as I readjust to eastern time and work schedule, while gradually catching up from the energy outflow of the trip.

Sometimes my energy doesn't match the activity I think I should be doing.  Being at work, and feeling completely like not being at work, is an extreme example.  Being alert and energetic late in the evening is another - how then, to get to sleep?

I observe these mismatches, and wonder how to bring things into more balance, so I'm really ready to do each thing, and have the right energy at the right time.  

Getting enough rest, and eating well, help.  I also know a number of yogic practices, some energizing, others calming, that are useful.  I'm trying to get balance and alignment before finding myself too deep into a situation with the wrong energy quality.