RewardsPlus, the Marriott Rewards and UA MileagePlus JV, is offering hotel and air travel packages that can be redeemed with RewardsPoints and UA Miles. The way it works is that one uses Marriott Rewards points to book a 7-night stay at a Marriott property of a given category and RewardsPlus throws in the miles that one would need to get to the location. Below is an example of what it takes book a package for a category 1-5 hotel: For 200K Rewards points, one can redeem a 7-night stay at a cat 1-5 Marriott hotel and get 55K UA miles toward securing an airline ticket to get to wherever the hotel is located. Now, supposed I am interested in the package shown in the last column, book a cat 5 hotel for 270K Rewards points and get back 132K UA miles to redeem for a plane ticket, but I only have 100K Rewards points, leaving me 170K points short. That is where one can do some interesting things because of the ability to transfer UA miles to Rewards points 1:1 through the RewardsPlus program. I currently have, e.g., 320K UA miles in my MP account. What I can do is to transfer 170K miles to 170K Rewards points to get the 270K points that I need to secure this package. Doing that would decrease my UA total miles to 320K-170K miles = 150K miles, a big hit! However, remember that the package I just purchased would get me 132K UA miles to use for booking a plane ticket. So, within 6-8 weeks, I would get the total number of miles in my MP account back up to: 150K+132K = 282K miles. This means that this package would have cost me in terms of UA miles just 320K-282K = 38K miles! I may still need to redeem UA miles to travel to the hotel location, but I have a lot more flexibility because I would not need to use the package right away (may be good for up to a year). I would earn a lot more miles in the mean time, or make different arrangements to get to the hotel location, which could even be at some place that I could just drive to or take a cheap train to, thus saving all the 132K miles. I think this is painless and clever, if one is looking to afford a 7-night stay at a Marriott hotel n, e.g., Cape Cod or Hilton Head or even in Asia! See a down side to this "scheme"?