Camera Geek Talk

I'm enjoying Cheryl Johnson's Twelve Days of Christmas photography class and finding it somewhat manageable to squeeze into my hectic work schedule. The class is a nice mix of composition and technical assignments. I'm learning a lot, in particular, about shooting inside my house (something I do fairly rarely). I'm learning about setting my white balance, which is really crucial. I'm also learning about using some different camera settings.  I have to admit that I get pretty stuck on using the "running man" setting and "aperture priority." 
So, I'm curious. For those with DSLR camera, what settings do you use most? And why? Do you use the "p" setting (program) and, if so, what else do you set? Are you a manual kind of gal? If so, are there certain settings you go back to time and time again?