Hertz is offering 25 free points simply by registering for the Hertz Summer Bonus 2016 promotion.

Register to earn up to two Free Weekend Days on your summer rentals with Hertz Gold Plus Rewards® from August 9, 2016 through September 5, 2016. You can earn:
275 bonus points on your first qualifying rental
275 points on your second
550 points on your third
That’s 1,100 Gold Plus Rewards points—enough for two Free Weekend Days!

Once you register, your 25 points will show up automatically. Please note that these 25 points will not extend the expiration of your Hertz points.

Hat tip to Dan’s Deals