OK, so here's the dilemma: I have a two-night stay at PH Mendoza in March 2012. I have it reserved using the two "Classic" Stay certificates I have (cost me $109 each + shipping.) Considerations are: 1. No stay credit or points if using these certs, but rate is nice. 2. Paid (Senior Rate, for which I am <alas> eligible), is $137.74 + 21% tax, for $166.67 total. 3. I have some suite upgrade certs left, and if I act very quickly, could apply one for one or more nights of this stay. 4. I could leave the second night as a Stay Cert stay and just pay for (and upgrade, if available) the first night. 5. I would still get stay credit if one night is paid and the next stay cert, right? What would you all do?