As for myself, I get what the cheapest one to use. I found that Walmart has the cheapest, detergents. Walgreens had pretty good sales of Purex, but not recently so I looked around for my detergent and found that Walmart had the cheapest. I ride the bus so I can't get anything too big or heavy any longer. I use Arm & Hammer 70 pack, pods from Walmart for just 8.67! This is so cheap, gets the job done and I like the scent and the way Arm and Hammer cleans.I save a lot of money & it's easy to carry on the bus too buying Arm & Hammer pods from Walmart.