Assuming I can't track down the sender after a reasonable time:
10 BTC > BitShares, Notes, and PLAY tokens.
2 BTC > Other alts (Peercoin, NXT etc)
5 BTC > Cold Storage with the rest of my savings
3 BTC > Give to other people/convert to fiat and pay bills
I would be ecstatic because my savings would be multiplied by like 9.