Best Western has launched a “Stay Three, Get One Free” promotion for stays between Monday May 19 until September 1, 2014.

To take advantage of the offer, if you’re a Best Western Rewards member you need to register before staying, now through August 10, 2014. Then stay with the chain three separate times by September 1, 2014 and earn a voucher good for a free night at any Best Western property in the US, Canada or Caribbean.

If you are not yet a Best Western Rewards member, you can sign up here.

Only one certificate can be earned per person during this promotion, and it must be redeemed on or before January 31, 2015.

I like that this is a simple promotion and the certificate is good for a fairly long period of time, even if the property locations are limited to the US, Canada, and Caribbean.

Here are some frequently asked questions about this promotion.