Not a Hilton HHonors member? If you ever stay at Hilton brand hotels, you should be.

It’s never too late to join, though. Through April 6, there’s an added incentive: Participating hotels (they are many, and they are all around the world) are offering double base points on your stay. Base as in base, not as in bonus points. Base points are more valuable. Or something.

For a complete list of hotels that are in on this promotion, now see here.

Image of the Hilton Moorea Lagoon Resort and Spa, one of many participating hotels.