I have the black tall moon boots and I try to spray them with the Ugg spray once a month or so. This makes them easy to keep clean. I also dont wear them when its really wet or snowy outside because I don't want to ruin them.

As for the size, its true you really do need to size down. I wear a 7 in just about every other shoe but wear a 6 in Uggs. The reason is that over time you will compress the fur that is in side and if you get your normal size they will be too big.

I wear mine a lot, either under bootcut yoga pants, or over skinny jeans and leggings. Not crazy about how they look with bootcut jeans, as the jeans kind of catch on them and then they look high water-ish. I also like the tall version because you can fold them over and make shorter boots with a furry outside.
Have several allergies and sensitivities.
Current products
Low Poo/Cowash: Rio Grande Herb Co Negrita and Amole Deep Treatment Concentrate, Magick Botanicals (MB) Shampoo (diluted)
Rinse out/Leave in: MB with apricot kernel and jojoba oils added
Protein Treatment: MB Conditioner for Thinning Hair, IAgirl's protien treatment
Style: MB Gel mixed with LOTD Aloe Vera Gelly

2b-c, need lots of moisture, likes protein in moderation.