I can't resist - my first suggestion about your new LQS was open it in NJ.
I agree with lighter colors, creams, tone on tone, being harder to find. My favorite color - orange (and all autumn tones and prints). My least favorite is someone else's favorite so there's no answer to that.
Once you're up and running, have fill-out forms in the store asking customers what they'd like that you don't carry. That's where your best suggestions will come from.
Wishing you much luck with this new endeavor.