I usually look at the hint when I see the cache page for the first time. Helps me decide if I even want to attempt it. If it looks like something I'm interested in I'll print out the first 2-3 pages (unencrypted and enough to get a couple of recent logs), enter the coordinates, and file the printout away in a folder.
I usually have a set agenda in planning out the order and number of caches to seek given my time constraints. Some that appear harder I may put off so I can dedicate more time to them. Since there is normally a pretty good time delay between printing the cache details and beginning the adventure most of the details are forgotten.
Once I'm ready to go I'll reread the caches notes for details (parking, things to watch for, trail info, etc.). I'll usually give it about 45 min before resorting to decrypting the hint and/or reading a few of the logs for potential clues.
Anyway, the short version is #3 with a caveat.