Oooh, don't forget coriander. Essential for Indian, and surprisingly handy in Chinese and Mexican, too.

But yeah. Beaucoup de lazy. I get big frickin' bags of spices from Indian stores etc., and they're cheaper (not just per gram, but in total) than even those little glass jars of spices in the regular grocery stores. I may never go through that half-pound bag of cumin, but it's still a hell of a lot cheaper than that jar that held one-tenth as much.