Definately the morning! The last I weight is whn I literally am lyingin bed, sit up and get straight out and walk into en suite, sheading any Pjs as I go, and get straight onto the scales.
Doing it this way rather than sitting up in bed or walking around a bit, can make a half a pound difference to me! (and 4 pound from first thing in the morning to last thing at night)
Yes, I full admit that there is a slight obsession with getting the lowest reading on the scales now!!