The original WAG bags can be had from REI for less than $2.50 each which includes TP and hand sanitizer. The difference, aside from the convenience of the waste being turned into a non-offensive gel, is that the used bags can be disposed of in any trash container/landfill. Not so with untreated waste...

Two and a half bucks may, or may not, be expensive but it's OK by me given the convenience and sanitation factors. FYI, we use 'em in our barn which doesn't have a bathroom and is a long cold walk from the nearest toilet.

FB
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"...inalienable rights...include the right to a clean and healthful environment..." Montana Constitution