I'm one to do as much as I can myself. The only thing I've asked the LBS to do lately was bottom bracket replacements for cranks. Most of the other stuff I do can be done with an allen wrench (hex wrench) and a chain tool.

I did buy a set of cable cutters just yesterday so I can trim out the cable housing on my bikes and get them the way I'd like for them to be. Having the cable cutters will also let me install the "Dura Ace" gear indicator on the cable housing as well.

Just my experience but it takes me about 3-4 times as long to do my adjustments the first time or two compared to the LBS but I work pretty cheap!!! I get a kick out of being able to do the stuff myself.