I just decided a few years back to make sure that at some point during each day I'd do some art, a scribble or full piece and it really seemed a good habit. I still feel the 'freedom' of creativity in that moment, but I try to schedule the 'moment'. I'm always imagining and day dreaming anyway, so I usually have no problem finding a subject to draw/paint when I sit down for my 'designated' time. But, we all work differently and that's what makes us all so different and interesting!