Cleaning your bottles and filtering your water

I was happy to know my family has been using the Sigg bottles I bought them for Christmas, yet they've brought up a couple criticisms:

1) Drinking hot coffee from a Sigg can be dangerous idea if you're not wearing oven mitts on your hands

2) Cleaning a Sigg isn't so easy, after all

My solutions:

1) I wouldn't drink my hot tea from a Sigg and risk burning my hands, but I would also prefer not to use disposable paper or styrofoam alternatives. I say- buy or make a holder! I linked, in an earlier post, evidence of the new trend to knit bottle holders. I also found some cool handmade bottle holders like this one on www.etsy.com :

http://www.etsy.com/view_listing.php?ref=sr_gallery_8&listing_id=21558534&ga_search_query=water+bottle+holder&ga_search_type=tag_title&ga_page=3&min=&max=&order=

2) I fill my Sigg with soapy water, cover, shake, and leave overnight. This may be ineffective. 

I would suggest to use one of these scrubby brushes, made originally for... potatoes. 

H2Ox2.com also sells this $12 brush specifically for metal bottles 

http://www.h2ox2.com/store/cleaning-brush-bottles-tops-p-23.html

... I would agree that scrubbing the inside of your bottle is probably pretty important.

ALSO! FOR ANYONE WHO DRINKS TAP WATER!

I found this clip on YouTube, convincing me to replace my broken Brita filter. Please watch and enjoy- it's a short clip that can be fast forwarded through.

http://www.youtube.com/watch?v=3xJX9rstYEw&feature=related