As I often say, being a professional means knowing how to break the rules properly.
Added: To pass 2008 as new construction, the answers are obvious, and given several times already.
Specifically to my house, but was compliant when done, and might be addressed in the future:
1. Exterior receptacle (rear only) and bath receptacles on one 15a circuit.
2. Interconnected smokes (2) only in bedroom hallway.
3. No hall receptacle (but hall bath receptacle suffices).
As to what's wrong that I'm responsible for doing:
1. Hot-tub feed extended from range circuit, since switch to gas range, no separate EGC.
2. Receptacle above suspended ceiling for H/T projector.
3. Contactor inside H/T subpanel for switching power.