There is an opportunity to get 500 Club Carlson points for signing up for their Club Carlson for Travel Arrangers program.
The Travel Arrangers program is somewhat of a loyalty program for people who are typically booking travel for other people (think department administrative assistants and such). You earn 10 Club Carlson points per dollar that you book for other people. I’m not sure if this is hackable in any way (if you could possibly double dip by booking travel for a spouse / friend / other, getting points as a travel arranger and then they get points for the actual stay). In any case, if you sign up by May 31st (Tuesday), you will earn 500 points.
500 Club Carlson points isn’t worth much, but it’s worth more than $0 and also should help keep your points from expiring
Get your 500 points by signing up here (by May 31st)