Split household: Taking items with them

This is kind of involved but it will work.

1. Move out the sim/s that you DO NOT want to move out.
2. Cancel moving once in the map screen so they remain "not in world."
3. Move out the sim/s that you DO want to move out.
4. Set them up on the new lot.
5. Play a neighbor from the original neighborhood.
6. As that neighbor, click the original lot and choose "move in family from library."
7. Select any family in your library and move them in for free.
8. Go to manage worlds and choose to play the newly placed family.
9. After loading in that family, immediately return to the manage world's screen.
10. Select manage housholds.
11. Select the original household.
12. Click "Move Household into a lot."
13. Choose the original lot and confirm.
14. You'll be asked if you'd like to move in with the new family. Click "Move In."
15. Confirm that you want to move in again.
16. Then, actually move in. (Oi, that's a lot of move in)
17. Play the newly merged family.
18. Go to the travel menu on your phone.
19. Choose split from household again.
20. Choose the sim/s from your library. 
21. Confirm.
22. And finally, the original family is back home!
23. Goto manage households.from the world management screen.
24. Click the heart on any of the families that you DO NOT want to play.
25. Collapse from exhaustion because moving day is always exhausting!

*NOTE* Any items in the house inventory that you do not wish to move with the exiting sim should be temporarily placed on the lot so that ONLY the desired objects are taken.

*SECOND NOTE* Any businesses that are owned by the family will go with the newly split sim/s. I don't know how to solve that.