habitat for Chinese dwarf hamster

Question
Our hamster is active now (2 weeks at home), but her hygiene  is slipping--she's not cleaning her head and poops all over her wheel.  Her cage was smellier 2 days after 1st cage cleaning than in the first whole week.  Looking mangy = not healthy, right?  What do you think we should do?
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-----Question-----
We have had a Chinese dwarf hamster for 3 days now who has been really really active, but hasn't left her hiding house since the morning play session.  We are assuming she's just worn out from the play (can see that she's still alive), but are worried that we may be overstimulating her.  In particular, we have built lots of different lego & Klikkos (another construction set with square & triangular panels) hideouts and mazes, which she has really enjoyed exploring and climbing around and hiding in.  With our new-pet/Christmas-vacation enthusiasm, though, they're changed really frequently, and we're now worried that this is keeping her from getting accustomed to her habitat.  What do you think?  Also, we've never seen her drink from her water bottle, and are worried that she may not be getting enough water.  No noticable change in the water level (we're changing it daily).  It's kind of a cheap little one that fits on the ceiling of her Critter Outlook cage--a little drip hole instead of the customary metal tube at the end.  Is this a bad water bottle?  Does a tiny hamster drink enough for us to notice?  We just love our little baby & want to do the best for her.  Thank you.
-----Answer-----
You're probably just changing things around too much.  Think about it from her point of view: she's just been in a new home, had her first major contact with her new family, and her environment is changing almost constantly. I'd give her a couple days to get used to things and then only change things around when you clean her cage.  Hamsters are very particular about their homes.  You'll notice she'll move things and make a nest and have everything just so.  Let her get used to her surroundings a bit as all this is probably a little stressful for her with so many changes all at once.  It does sound like you have put a lot of thought into her toys and home so she'll be very entertained.

On the water issue, I have that cage you're talking about and never had a problem getting them to drink from that bottle.  She may just be drinking only a little.  You can probably go up to (no more than) a week without replacing the water.  Or, it could be that your tap water is different smelling or tasting than the water she's used to.  You can try to let it set out and "age" for a day to remove the chlorine smell or try bottled water.  Just to be safe, you may want to place a little cup or peanut butter lid of water in the cage if you're worried she's not drinking from the bottle.  However, if you notice she hasn't drunk anything and begins to get lethargic, she may be sick.  Contact the pet store you got her from or take her to the vet.

Good luck!
~Lauren

Answer
The wheel pooping is pretty common.  Unfortunately there's not a whole lot you can do about that.  Some hamsters can supposedly be litter trained and petstores sell hamster 'potty litter' but I'm not sure how much luck you'll have with that.  

As far as her grooming is concerned, if she looks greasy and generally unkempt, try getting her some chincilla sand.  Dwarf hamsters will roll around in it (it's cute to watch) and look 'fluffy' again.  But, if she starts acting lethargic/not eating or appears to have wet tail, she may need to see a vet.

Good luck and let me know if there's anything else I can help with,
~Lauren