My LBS is a locally-owned 'chain'. The one closest to me is a mere 1/2 mile away. Pretty convenient.
When I need help, I can roll up and usually get immediate service on my bikes while I wait - even on weekends!
They also have a workstand for customers, and a box of tools for tinkering on your ride. They rock!

Durham Durham Cycle Center
Chapel Hill Franklin Street Cycles
Carrboro The Clean Machine