A little trick for finding exceptionally dim objects recently relayed to me by a fellow Horseman of the Night. Using Precise GoTo, instead of slewing back to that original target, enter in the RA/DEC coordinates of your unseen quarry. Precise GoTo will put you right there. Doesn't help much for visual work but opens up a whole new world of imaging targets. He used it to find Comet ISON this past weekend and produced a very fine image of the still dim comet. (Ray - I'm talking about you. Are your ears burning?)
I tried in vain to find ISON myself this weekend using 15x70 binos and I know pretty closely just where to look. So I am thoroughly impressed with Ray's use of GoTo as a working tool by someone who knows the sky and where/how to find what he is looking for.