Nalgene bottle kits are great as backup/standby kits in your office drawer, glove compartment, as an additional kit (within your BOB) to share with someone special in special circumstances.

One thing I haver to consider though. If you keep it in your glove compartment for long time and those hard objects ( knife, spoon ..etc ) keep etching the plastic , wont that cause a health hazard when you fill it with water and drink "plastic beverage" ?? I guess a good wash is necessary before you fill it.