Any man who ever thinks he will end up married some day MUST own the following BEFORE you pop the question:
Guns - not just one, but one of each kind of anything you might want to buy in the future. If you have guns and she says "yes" - that means she's saying "yes" to more guns in the future (but, it might cost you....)
Machinegun - much easier to get that sign-off (for those that can still get sign-off's) if you aren't married. Just take my word on this.
Motorcycle - doesn't matter if it runs or not - you just better have one sitting in the garage if even think you will want one in the future.
Car with only 2 seats in it - enjoy it while you can, because once you're married, that will be the first to go - (you get to keep the guns and motorcycle, though
)
Tools used for making stuff - sanders, saws, bench mill, lathe, grinders, etc. The only tools you can buy after marriage are tools for fixing stuff and yard work.
Don't forget - after marriage, the man only gets to use 1/4 of the garage square feet; wife gets the other 3/4ths. That means your motorcycle and some of your tools get to stay - your 2-seater sports car convertible gets to bake out in the hot sun, buried with leaves in fall, and iced up in winter.....not long before that gets replaced by a 4-door sedan anyway.