Tell you WHAT, don't ever get yourself married up to a woman without a proper pre-nup. Bad enough to make 1 mistake on the wedding day, but not having that pre-nup when you make the first mistake, you might as well just shoot yourself in the head. I dang well know 4 of them documents saved my butt.
Prepaid funeral is probably a better investment than a wedding is these days. Throw in a prepaid cemetary plot for your motherinlaw's Birthday present too and you got it covered.