I got mine to minimize time spent cleaning, do most common area's of the house in a little over an hour, then a little project too, as needed/inspired.
I'm going to Red BoxMart to see what they have, and the prices. Might have to figure out the ingredients and find a comparable thing in a bigger/cheaper bottle.
I used to do the crawl too, small floors so I probally didn't save alot of time any how, but it sure is convinient, got my first one $14 new, it broke, 2nd one like new, salvation army price $2.50, otherwise I was holding out for a sale on the Swiffer in hopes it had a better design.
I'm thinking maybe there's better products if I'm just going to refill the bottle anyhow, might as well get a good price, otherwise it's $3 and change for a small bottle.
Oh, I just finished cleaning most everything for the week-end, and the project is going to be the bookshelf--throwing out and reorganizing.