Some common drills I run are:
Up and down the major scale and then back up the scale playing each triad. I repeat this, raising the pattern up a step (fret) each time.
Pentatonic modes (Running through a given scale starting at different intervals withing the scale [Like playing a G major starting on the note of A])
Chromatic finger exercises (google some)
The trick to making any of these effective is to set a metronome to such a speed that you can execute them flawlessly. Even if it's embarrassingly slow - don't sweat it. Don't speed up until you are consistently nailing those exercises. You'll get a lot faster.
@two fingers is dead on when he says repetition early on is necessary to seeing any improvement. Also, if you set 4 week milestones for tracking success instead of looking for daily progress, you won't get as discouraged.
No doubt repetition is key.. you get a like because in a post that took me 30 seconds to read you've provided more useful information than I've gotten out of some 20 minute videos and even entire books, lets throw a series consisting of several DVD's in there too. I especially like hearing about how you practice, especially what kind of drills you use.
Ive run chromatic exercises to heck and back both on guitar and bass, and should probably do them every time I pick up my bass as a warm up. Kudos dude I'd enjoy more posts like this.