Here's an interesting book that I saw talked up by its author on BookTV the other day: Junk English . In theory, it sounds like all of it can be reduced to "say it in a few simple words, and don't use shill-talk". But the book actually works through phrases and formulations that you should not use: don't say "the thought process" when you can say just "thinking", don't say "on a daily basis" when you can say just "every day", etc.
Notably, the author independently arrives at something I've complaining about for years: "issue" when used as a twee synonym for "problem", as in telling your network admin that you're having "bandwidth issues" instead of "bandwidth problems". My standard line on this is: "Whether mankind has free will is an issue. If it's something that doesn't work, it's a problem."
An interesting possibility here is programming word-processors to catch a lot of these things, since so many of them are set phrases that you almost never actually want; and other things from the book are sort of "red flag" words that are often (but not always) abused: "process", "issue", "unique", "revolutionary", "visionary", etc. Other things are a bit harder to get a computer to see -- like to know that "broad overview" is redundant.