best
me; first house doubled in value in 6 years.
dh; £2 lottery ticket - won a load
together; paying down mortgage pre dcs.
worst
me; getting an endowment mortgage.
dh; selling a house at the wrong time- still made a decent profit, but had he waited it would have been more.
together; getting a stupid big car that we both hated 2 months in- part chopped it for a smaller one.