Looking for an upgrade? Here are some simple strategies:
Contact hotel management. While confirming your stay, it doesn't hurt to mention that you're celebrating a special occasion.
Check in later in the evening. When the hotel knows which rooms are remaining empty for the night, an upgrade is simple.
Sing the hotel's praises. A handwritten letter to the manager or an extra tip for the concierge can almost guarantee an upgrade the next time you check in.