If you check bag(s) and they don't (ever) reach the carousel you would wish you had ONLY c/o.
I am only a leisure traveler, today even classy restaurants have done away with dress codes, so I can easily (even for a 2 week trip) get by with a 17" carry-on.^ [Though I could only fit one weeks stuff in the bag, I would have to wash clothes for the 2nd week.]
Several years ago I was in the customs line at JFK, a family of 4 was ahead of me: "we were away in Bermuda for the last 3 days and we brought NO bags", the CBP agent said "OK, welcome home"--I wish I could travel so light.
