I confess I am not complaining, but...
Even with getting Macy's and Best Buy, my Util went up over the holidays. I will have paid everything in full by the end of January, but I know my util went up from less than 5% to above 15%, and my EX and EQ went up. Not a lot, but still up. And apparently, EX would have gone up more, but my account age went down, and I have two inquiries, because now the page with the explanation says these factors are hurting my score.
Wild! I will never understand FICO scoring completely, I guess...
Lisa
I am positive nothing changed except util. SW noted that the same day I had a JCpenney balance increase of $300. That was the only change I can see.
I am just going to guess that it is because my credit mix changed?
In any case, EQ went up 11 points and EX went up 2. EX is now at 692 (oh, so close!!!!) and EQ is 668. 
Well, my mortgage is on month two, although it reported last month...but I thought maybe adding more store cards (2) did it?
By the way, I posted in credit cards because I kow the util is discussed a great deal in there, and my util went up, and so did my scores...thought it might be of interest in that forum. But, maybe I will get more answers in here.
This is interesting. Wish they'd bump me up for buying things. 
Anyone have any other ideas why this might happen?
Maybe I did get rebucketed? Here is my information:
EX--my highest was at 690 and is 692 after new cards reported with balances.
EQ-my mid- was at 657 and is now at 668, same deal.
TU went from 647 to 656.
All of my credit scores and reports were pulled in the last week, and all are real FICO scores from this site.
All cards reported balances before I paid them. I was at less than 5% in November and was at 18% util. until I paid Macy's and HSBC in full.
Until this year I had not apped for anything in YEARS. I apped, this year, for a car (approved) mortgage (approved), 4 CC's (Home Depot denied; Macy's, American Signature Furniture, and Best Buy approved).
Nothing has fallen off, and nothing else has changed. The three new accounts also lowered my average age.
I fully expected to drop, and drop hard. I am VERY pleasantly surprised.
