I usually do:
19 to 21 darks at 3 minutes each at the same temperature
19 to 21 offsets at 1/4000 of a second each at the same temperature
As many lights at 3 minutes each as I want (the more the merrier)
I havent tried flat lights yet.
I Stack them all in Deep Sky Stacker and do my primary processing there. (At this stage its still a TIFF)
I then save the image, exit DSS and reopen the image with photoshop and have a bit of a play with it there and crop it to size and save again.
Next, I open it with Corel Paint Shop Pro 9 to frame and put text on the image. Save once more.
Next, I open the image with windows picture and fax viewer and save as a JPG.
Finally, I resize the image with powertoys for windows XP image resizer.
EASY!!
Baz.