Do not use 5 gallon, industrial type buckets for a diaper pail, a small explorer can topple into them, head first. I prefer to use the cheapest biodegradable soap possible. I go to the local janitorial supply for a giant box of unscented biodegradable stuff that lasts me a year for the family wash. These contain Borates and can irritate your baby's bottom, and can damage many brands of diaper covers and elastic. I usually found that double rinsing was not necessary, but if you use whiteners, you must double rinse.
Sunlight is a natural germ killer, and everything smells so nice.
It is also a nice time to be outside with your baby. But be realistic, when you have a family, you do not always have the luxury of time. You might want to line dry if there is a problem with diaper rash. If you or your baby have asthma or allergies, do not use the softener sheets. If you have line dried the diapers, put them in to tumble for 2-3 minutes with a clean baby tennis shoe to fluff them.