Having played bass for a while, I have found that it's very easy to get stuck in a pattern usually as follows:
1) Have songs to learn for gigs.
2) Learn songs (or what I call the "Noddy version", every nuance isn't picked up but the chords are followed and it's very easy to just "get through the tune").
3) Drink tea.
4) Do gig.
5) Get paid.
While this is a relatively fool-proof way of performing, it doesn't really speak to the musician within and neither is it a good way to develop good playing technique or practice. In fact I have found over the last year or so that I have fallen into bad habits.. something I am now taking the time to remedy.
So, I have begun a new regime of exercises before practice, namely technical to help my left and right hand co-ordinate. I've included some of the links I've been using below, namely Josh Fossgreen and Scott Devine who put up some excellent (and musical!) YouTube vides.