After getting tired of filling my fuel tank with a portable tank and funnel, I tried a portable tank and a syphon hose. I put tank on a portable table, insert syphon hose, press bulb a couple of times, and the rest is easy. It takes about 20 minutes to syphon five gallons into tank, but there are no spills, and I don't have to stand there and watch it. Not a bother if you are hanging around the house or campsite anyway. It still would be a pain in the butt to do if you are traveling on the road, though.
2014 Elevation 3616 5er
2015 F350 6.7L Diesel 4X4 - long bed, dually