In reply to Ava Adore:
I live about 5 minutes bike ride from the wall which is useful for getting the blood pumping.
When I'm being conscientious I'll then do three sets of 10 L-sit pull-ups to activate my core and back muscles, three sets of 20 press-ups to further activate the core and work the antagonistic muscles, and three sets of deadhangs on big holds to start warming up the fingers.
Next, either 10 minutes of easy traversing or three easy routes depending on what I'm doing that session.
If I'm climbing routes I'll just get on whatever at this point, but if I'm bouldering I'll spend some more time doing slightly harder problems before getting on anything at my limit.
Outdoors, it's usually just a case of doing some pull-ups on a couple of big jugs, and then three warm-up routes getting progressively more difficult. If I have a hard project I'm working, I find my fourth climb of the day is often when I feel physically at my peak.