IMO, Anyone who considers themself a pothead, wether bigtime or more 'here and there', everybody should invest in a big sized kief grinders.
But beware of the immitators. You want the type of grinder that has 3 departments, #1 is where u take the top off/put your bud in, after twisting it a few times, the 2nd department is the top piece you screw off that catches all the leaf/stem from getting through to your broken up chronic, and the 3rd department would of course be the bottom where the kief is collected. In theory grinding your weed in there will leave u with some kief chrystals b/c of the screen, but if you Really wanna get your kief together, rub your crown nugs, or a few, over the screen and it piles up/starts to look exactly like some really good dope(Heroin).
Once youve gotten a whole bunch of it, put it in plastic n press it into a hard disk/ball, use alot of weight pressure and some heat.