Wife and I will shortly be taking a round trip on Delta Airlines from the US to an overseas destination. It's a two-leg trip on the way out (US city A to US city B to foreign city C), and a two-leg trip on the way back (foreign city C to US city B to US city A). I have two questions.

#1:
On the outbound trip, there's an overnight layover in US city B. Will we able to collect our checked luggage after the first flight so we'll have it with us in the hotel room, and then recheck it the next morning for the international leg? I tried calling Delta's customer service line, but they didn't seem able to give me a very definitive/clear answer.

#2:
There's also an overnight layover on the return trip. Our hometown is positioned between US city A and US city B. During the return trip from foreign city C, I know we will have to pick up our checked bags in US city B and bring them through customs ourselves. We plan to sleep at home in our own bed that night, leave our luggage at home, and then return to the airport the next day for the final flight from US city B to US city A (and then drive home from US City A). Will Delta get upset if we don't check any bag for that final flight, despite having checked bags for the previous flight? I would ask Delta about this, but I don't want to give them any reason to suspect that we might be planning on skiplagging (we're not).

Thanks...