How to hack a Swiffer WetJet to refill it and go green or save money

I use my Swiffer WetJet for all of my mopping needs, but the refills are pretty expensive - especially during this slow economy.

And it's very inconvenient when I run out of product and need to mop my floors.
Now, I've learned how to easily refill it with whatever cleaner I want. Although, Swiffer wants us to think the cap is permanent, it can be easily removed without much elbow grease.

Engineer A Debt Free Life has detailed instructions how to refill the bottles in three easy steps.

Step 1: Remove the cap. Almost everyone probably has a pair of standard pliers. Make sure the pliers are in the biggest jaw setting for maximum effect. Clamp on the lid and give it a tug.

Remember the leftie loosie ... rightie tightie rule.

Step 2: Once you have it off, fill it up with whatever cleaner you like. You can use about 1.5 cups of vinegar and top it off with water. Or another product of your choice. You should remove the label and write the contents on the bottle with a marker.

Step 3: Screw the lid back on. It goes on easily the second time, but the first time the  pliers were needed to get it on tight again.

VOILA, I told you it was easy.

Swiffer Wetjet refill promotions

Do you have any cost saving ideas to share?