Used the wag bags, actually the Reliance Double Doodie bags you can find at Walmart and on-line. Love them because they give you freedom from going ashore and nothing to clean out.
We carried our 'you know what' for 7 weeks in Florida with no problems. Took about 3 days per bag and then moved the bag into one of the 5 gallon buckets with the sealed lids you can buy at Home Depot for a couple bucks. End of trip throw the whole bucket in the dumpster so no one has to smell your shi.....
It does smell during actual usage but you can cut down on that with the stuff you add to tanks. I have the actual head so that it seals tight and doesn't ...
http://purplesagetradingpost.com/sumner/macgregor/inside-index.html
.... smell with a bag in there and we found that you could have the bags in the 5 gallon containers for a long time if you also put the container in a large zip-lock bag like they sell to store cloths in.
Now the only problem with them we found is are they legal in the Florida Keys? I think after reading all of the regs I could find that on a boat under 26 feet they are and the Mac is 25'-11" but still if you go to say Marathon you can't stay there with that situation. They give you a week to install a MSD type head that can be pumped. We left before the week was up but still worried about being hassled in the keys. The same in Canadian waters now. You have to have a MSD porta-pottie that is connected to a line for pump-outs.
Since I'm going back to the Keys and hope to go to Canada again I'm in the process right now of installing a MSD porta-pottie (Thetford 260) in the Mac so if I'm in an area where it is required I'll have it but otherwise will continue to use the Double Doodie head. Might be one of the few 26 foot trailerable boats with 2 heads

.
The MSD porta-pottie was the cheap part of this exercise ($112). Since I also want to be able to pump it out if I was outside the 3 mile limit I've installed a macerator pump also that cost more than the head. You add the head, pump (if you go that route), and the fittings and hoses or PVC plumbing and it does add up.
I have a lot of work into this mod (about done) and it is so specific to using the 260 head that I just bought a second one in case somewhere along the line the first one 'craps out'. I don't want to find out that it has been discontinued.
I don't like planning a trip around where are you going to get pumped out at or where can I dump my porta-pottie every few days and some of the places we went that wasn't even an option or an easy one. The bags sure solve all of that. I was very skeptical of using them when I first read about them but not now.
I'll post the mod later when I have time,
Sumner
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