I second the totes. I have 4 heavy-duty bins with waterproof lids. Two are for kitchen ware (including electric skillet & kettle, rice maker and crock pot, 1 for the pop-up (sheets, blankets, pillows, reading lights, flashlight) and 1 is miscellaneous (duct tape, bungee cords, tools, wheel chocks, front jack, flashlight). They load and unload easily from the trailer to the garage and vice versa. Once at the campsite, they get put on the picnic table while the pop up is being set up. While camping they stay under the popup or the picnic table.
Another thing that makes it easy is a check list and a packlist on the computer, although now that I use the bin system, everything stays packed and ready to go. I don't have one item that has to be shared between the house and the pop up. When something gets a bit worn at home, it goes into the camping bin and a new item is bought for the house.
I try to take half a day off on camping weekends (by working extra Mon-Thurs). That way I get there in daylight and can take my time setting up. I put a chair in the shade and break the set up or break down into segments and rest in the chair and have a cold drink in between segments.
Usually I bring a sub sandwich or take out of some kind for the first night. Often I leave setting up the screened dining tent and kitchen for the next morning when I am fresh. The rest of the gang usually sleeps in a bit and I am an early riser, so by the time they are ready for breakfast, i have set it all up, coffee is made and breakfast is set to be cooked.