I have a room set up. Is it just for jingle? No, it's more of my holiday room. It's typically any set for the next upcoming holiday. Egg for Easter, Spooky for Halloween, Jingle for Toy Day, etc...
I was planning on buying the Jingle set and replacing my furniture in my main room like I did during Halloween for Jack last year when I finally did the Halloween events, but I got lazy and I didn't bother getting on enough days to get all Jingle's items :T
I used to but now I stopped. However I do put festive trees in the living room part of my house to make it just like real life, but I don't replace anything with Jingle furniture.
My upstairs room is filled completely with either jingle or holiday-themed furniture now. I also have the whole santa outfit laid out, and Francine actually commented on how daring it was for me to leave it out in the open... Yeah, they won't suspect that Santa is me at all.