The theme is still totally open...but my thought was that it could encompass both main suggestions from this thread.
The resolution aspect
-Or eating something healthy and exercising
-or "shovelling" snow
-That could include our darling fuzzbutts misbehaving and trying to convince us that "they'll never do it again
and/or the new aspect
-New trick, new pet outfits, outings to new places, or new friends.