interior lamps- 97 gt

recently i noticed that my lights just weren't working. i checked all the fuses and none were burnt up. before i started going thru alot of wiring i was just wondering if there were any common places that go bad.
thanks

Have you checked the 12 volts at the interior lamp fuse socket or at any courtesy lamp socket? The most common problems for no interior courtesy lighting is missing the 12 volts, wiring, or a bad body control module (BCM) since it controls interior lamp illumination and dimming.