Three millions?
This is so riduculous. Why don't they make one million the max, and then give one million to three different players, with close numbers?!
What i would do with three millions? Lots of ideas

Pay the missing house rates, build a big garden pond, plan some holidays to where i have not been before, become self-reliant maybe with lending yachts, make a pilot license and build an 1:1 Etrich Taube replica to fly with, finally write the two books i never have time for, buy an Austin Healey 3000 in perfect condition and a Triumph Spitfire Mk. III in same. Get some Live steam model locomotives and build a garden railway, or buy a lathe and do it myself. Go sailing, North sea and round GB, then elsewhere, visit friends... i guess some shoes for the wife have to be included
Oops just came down to reality again