Today, I refilled my swiffer wet jet.
I ran out of the liquid yesterday, and decided I didn't want to spend money on another one. I had some orange floor cleaner, left over from scrubbing my laundry room.
I had to use brute force to get the lid off, but I assure you, it DOES come off. Then, I filled it with a bit of floor cleaner, topped it off with water, and put the lid back on. I tested it for leaks, and there were none.
So, one container of floor cleaner costs about $3 at my local
walmart, and it probably refill the wet jet container at least 10 times. This means it will cost 30 cents for each container, as opposed to the $4 per container it costs at the store. And, the lid will not be hard to get off ever again. Very simple way to stretch a dollar!
I've also read that people refill it with vinegar/water.. but i really can't stand the smell of vinegar. That would be even cheaper though.