This might be a weird question, but I like to know what to expect

We are driving to WDW next month and I'm wondering how arrival/unloading the car will look. We plan to get to the resort around 8am, and I'd be surprised if our room was ready. Would it be best to find a parking space then all get out and walk in with our luggage? Or check in then go back for our luggage? We'd like to go to Epcot that day so I'm trying to reduce the back and forth, but it seems silly to drag all our luggage in. Do they have luggage carts? We are staying club level, so I know they have to work the elevator and such, will they do that when we first arrive or when our room is ready

Thanks!