Mwahahahaha! I am no longer subject to the whims and vagaries of the Swiffer!
When I bought one a couple of years ago, I thought to myself - this is a brilliant thing, but I'll just refill this same bottle of cleanser myself after it runs out. Only apparently the Swiffer people anticipated this, because the "bottle" is not a bottle at all - it looks like it has a screwtop, but instead it is sealed shut. Go ahead, try to uncap the one you have at home. I'll wait for you...
So, inspired by this groovy instructable, I hacked my bottle to be endlessly refillable. I used the same method, but went with whatever I had around the house:
- heat up a small part of the bottom of the empty Swiffer bottle with fire (I used matches, but a lighter would be less dangerous)
- puncture a bunch of holes in the heated plastic with an awl
- cut the top of any reclosable container that has a cap (I used a milk jug top)
- glue this container top to the bottom of the Swiffer bottle so that the cap sits above the holes you made with your awl (I used scads of hot glue)
- pop off the cap, fill it up with the cleanser of your choice (I go with half-water half-vinegar), and clean to your heart's delight (with your homemade Swiffer rag of course)!
Hmm... of course, now I see that you could also follow these instructions to work with the faux Swiffer cap itself.