I light a lot of fires, 2 small stoves that can't be kept in over night..... I light about 330 fires reach winter. Mostly it's just newspaper balls, kindling, a few small logs, and a match. I do collect waxed paper all year long and add that... Lots of the kids sweets (candy) wrappers are waxed paper, and some bread is wrapped in waxed paper. I have also used wax from old unwanted candles, I just took the cheese grater to it and grated a bit on to so news paper then rolled and twisted the paper up with the wax inside. That seemed to help get things roaring fast. I also watch out in the super market at the end of summer to see if they have left over BBQ stuff selling cheap and as well as stocking up on a couple of sacks of charcoal for the next summer I'll buy a few bottles of the lighter gel if I see them. A goood squirt onto a sheet of newspaper before rolling it up and adding to the stove helps. These are my zero/low cost and low effort techniques.
I have also considered adding a few strips of polypropylene or pet plastic which both contain only H, C, and O atoms, no halogens, and are common and easily identified. Plastic bottles are usually one of these 2. My chemistry tells me they are highly calorific, burn easily and can't burn to make really nasty products like dioxins (PVC which contains chlorine does produce dioxins and these are nasty... Think agent orange). Like most solid or liquid fuels they will produce soot but that is the worst as far as I can determine. However I've resisted trying as I can't find a definitive answer. I suspect a few strips cut from a bottle would make s decent fire starter.