When you have this much information on spend management techniques, sometimes different topics can't fit in one post. That's why we'll often run a two or three post series on some more interesting topics. To continue with the "best of" posts from last week, we're sharing some of the best serial posts from 2008. And -- no surprise here! -- this is part one of the two-part "Best of... Spend Matters Series." Stay tuned tomorrow for the second half.