Thanks to the 
Suburban Wife's Daily Dollar Diary I've learned that 
REI will refund the price of all Nalgene bottles made from BPA purchased at their stores!  Click the link to learn how she did it and without the receipts even!
This was great news to me since we got the girls 
Nalgene Grip 'n Gulp
 bottles for Christmas from REI .. in addition to the 3 or 4 other Nalgene bottles floating around the kitchen I've been looking at spending between $50 and $75 to replace these.  With REI's awesome return policy I should be able to break even on the deal!
Now my question is do I go with the 
BPA Free Nalgene Grip 'n Gulp
 or do we make the transition to stainless bottles?  My husband and I currently use the 
Sigg Sport Bottle
 and really like them, they seem to keep drinks colder longer and the 
Sigg Kids Bottles
 are super cute!  Perhaps the narrow necks would make cleaning more difficult and having to make especially shape ice cubes may not be a great use of time but these may be more fun for the girls and luckily they're big water fans so these would only be used for that so no making fermented apple juice (hard cider anyone?) in left behind cups.  However, the Sigg bottles run about $5 more per bottle than the Nalgene ... Hmm .. I guess we'll be taking a trip to REI next time we're headed to Ann Arbor and we'll let the kids decide!