It seems to me that the best use for two 35K certificates depends on where you want to go. You're not going to get a renowned luxury property -- one where the property is the destination -- for 35,000 points per night. So what really matters is where it's located. You also probably don't want to fly from NYC to Hawaii just to use two certificates.

What kind of destination do you enjoy? Historic sites? Natural beauty? Beaches? Theme parks? Museums? Picturesque towns? Food destinations?

The vast majority of Marriott properties in the United States have nights that are 35,000 points or less. 35,000 points won't go far in America's most expensive cities, but you have all sorts of options elsewhere.

If you want a full-service property because of Platinum Elite lounge access or Platinum Elite breakfast in the restaurant, make sure those features are available at the properties that interest you. Too many full-service properties have not yet restored their Elite benefits. The worst ones have reopened their restaurant, at least for breakfast, but are only giving Platinum Elite members 750 points (worth about $5) — but will sell breakfast to those same members for $20 or $30 per guest.