Title says it all.

Just upgraded to the Amex Plat (not DL) which gives me the $200 credit with the airline.
The agent told me it's by calendar year, so I have 2 weeks to spend it, then it resest.

He suggested buying everyone on the plane a drink - which isn't a terrible idea (I have a flight xmas eve!) - but I'm trying to be a little practical.

Can I buy lounge passes for future use? Or anything else durable?

Interested in hearing your creative ideas.

Thanks.

-R