I tend to use the same spreads over and over, although I'll sometimes adapt parts of them if I feel I have to, in order to better answer my question. It may sound weird, but I think learning to work with a spread is just as important as learning to work with a deck... As you get more comfortabl with a spread, you start to get subtle impressions about the reading that go beyon card meaning... like when a certain card or element pops up in a certain position, or when a certain pattern keeps repeating... things like that. In my 'normal' tarot routine, I have my few favourte spreads and will usually resort to them. I do, however, enjoy trying new and different spreads in reading circles and exchanges, as a fun exercise.