It seems every week or so a question is asked about an easy way to move heavy appliances in and out of their location. I've often mentioned the very thin, extremely slippery UHMWPE (Ultra High Molecular Weight PolyEthylene) strips from Woodcraft.com called Slick Strips, which I've used with great success.

Now here's something else sold specifically for this purpose. It's called Glide 'n' Guard Floor Protectors. I have not used this product, but it would seem to be appropriate for the task. The price is about $20, plus shipping. The provider claims it will "protect your floor from scuffs and scratches while moving and cleaning around major appliances".

It's even a patented product: Floor Protector Patent

You can search Google for "Glide 'n' Guard Floor Protectors" to find other suppliers, but many links redirect to the one I include below.

Here is a link that might be useful: Glide 'n' Guard Floor Protectors