You could always just use the Novac home, since its actually intended as a player home. It only has one loading screen too if you don't count the fast travel to get there.
If you're wanting something less majestic you could always use Harper's Shack, its got a bed, some storage space, workbench, reloading bench, and a campfire right outside. I'm not a hundred percent on this but I think its probably the only place in the game where all of those things are consolidated in such a small area. Only downside is if you wander too far uphill from there you'll run into a pack of deathclaws.