I recently found myself the leader of a youth group of 12 people that was planning on spending a week in the a remote area of the backcountry. Faced with the prospect of 12 people spending 6 days in the semi-alpine environment, I was looking for better options than the age old 'cat hole'. We decided to give these bags a try and they worked out great. We actually got one of the PETT toilets as well. While Phillips Environmental says that these bags can be used multiple times, I wouldn't suggest it. However, they are easy to use and rather convenient. The powder in the bags will reduce the solid waste to a biologically safe, trash disposable gel. We packed the used bags in 5 gallon bucket with a lid that had been decorated with a 'toxic' symbol and easily disposed of the bags when the trip was over.

I recently purchased and used these bags. They provide some peace of mind for "back"country emergencies. They worked great in a "pinch" in the White Mountains. I have used similar products with disastrous results. A ruptured waste bag can ruin a sleeping bag and leave you the loneliest person in your group. I recommend having someone else carry the "pickle jar".

Alright, so pooping in a bag is never a good time. However, if you have to do it get these.
P.S. They say good for multiple uses, but unless you have a industrial strength nose clip and a gas mask this is not advised.

A lot of popular national parks (Grand Teton) are using similar products. While carrying your waste is never enjoyable, at least this helps with the smell and makes it less easy to rupture.