You need to have goals. Bottom line. If you don't have at least a goal in mind when you're training, you are doomed to failure or, even worse, mediocrity. With every rep of every squat you have to know that you're bringing yourself 1 step closer to your goal. Don't waste your time doing things that won't get you there. Pick 3 things, or even just one thing that you want to accomplish in the next 3 months...6 months...year... and then go and make it happen! Too many of us just go through the motions and waste our time, don't let that person be you.
Some of my goals:
Devote more time to zercher lifting (and other odd lifts)
Flip the tire at least once a week for conditioning
Improve my nail bending (more sledgehammer levering)
Spar more in boxing and jiu-jitsu
On a more quantifiable note:
Beast Tamer Challenge (August 08)
Deadlift 600lbs (before 2009?)
There's a lot there but I still want them all. Get stronger!