Are there restrictions on having all the lights on one floor on a single circuit breaker?
That will come out to 4 light fixtures on one 15A circuit and 6 outlets on the other 15A circuit.


I would highly recommend going to 20A on the 6 outlets. It means going from 14 to 12, but you'll be able to run more things off those outlets. You can still install 15A outlets, as they can be used on a 20A circuit. Speaking from experience, you'll regret staying at 15A if you start maxing the circuit out (and it doesn't take much these days)

The lights can all stay on the same circuit at 15A, which will make wiring your switches up cheaper (don't forget to add a neutral in your switches!). Most lights do not draw that much (especially if you go LED).