My grandmother is not working anymore and all she does with her time is rearranging her house. I wish my grandmother would come and visit me so she could rearrange my room.
I rearrange it when I get sick of it! I think when you tire of something, a quick change up makes it look all new. Also when you rearrange it brightens up the room.
I'd say I do it every couple of months.
I rearrange my home when I have time to do it, or when I am not comfortable with the setting of the furnitures. I consider the daily traffic that goes through it, and arrange it accordingly until I find the most comfortable arrangement.
We rearrangge our home when its needed and there is no definite schedule for it. We usually rearrange when there is an upcoming occassion like birthdays and holidays.
Being at home all day means that I can adjust the things that needs to be rearrange. Therefore we don't really have a specific day or time to rearrange our home.
Rearranging Your home 
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