A good thread.....have to comment on the coffee though. I agree with the morning coffee fix as well - if I could walk around with a permanent drip of coffee infusing into my veins I'd be happy.

I use a Coleman twin burner and use the Coleman fuel or Shellite fuel. Never tried the Unleaded though. Here in Oz I spoke to Coleman who suggested that if you start using one type of fuel it's best for the stove to continue using it..(but they may not be aware of the nifty tip of injector cleaner for the carb).

I get good economy out of the Shellite - I have used a twin burner for a week on a tank of it and a Coleman duel fuel single burner lantern for about the same time. I also have a single burner Coleman that has about a 3 hour cooking time per tank but it works like a blow torch - a bit hard to control the flame.
I do like my Gasmate butane cartride single burner, but bulky for the bike - usually sits in a day box in the back of the forby. The little single burner butane (Gaz size canister) burner I use has small canisters; I can cook 8 meals plus 1 cup of hot water per meal (supposedly one hour burn time per can). Not bad. Off course the meals are heated cans of stew or some such concoction takes about 6 minutes to boil and heat both water and can food. I use can foodstuff where I possible because I don't want to use dehydrated food types that require water to be added, as there is absorbable liquid in the cans and other food types (eg:can fruits) - not a problem if water isn't an issue though.

So I find the ColemanFuel or the Shellite the most economical, AND I agree on the gas cartridge problem developing around the countryside here in Oz. Some people have a nasty habit of dumping them in the scrub and its not unusual to see, in some places, a swollen can from heat lying around like a small bomb ready to go off - always a worry what we throw in the garbage and into the ground.

Cheers