Make your own: spice blends
Pre-mixed seasonings are often much more expensive than plain old pepper - so unless you’re obssessed about Montreal Steak Spice (as one ex just throws it on everything) and don’t know how to replicate it, you can mix your own with common plain spices.
Cook’s Theasaurus Spice Mixes of the world - illustrated, with some off-site links. You really can’t go wrong if you look at this one.
About.com’s Seasoning Mixes
Bonus: You can make your own gift basket of mixed spices.