Oh. I forgot add the following tip to that list:
You
have to be checking your web stats on a very regular basis. I mean- like a hawk.
Of course, use the tool you prefer and gets the job done for you.
There are free, cheap, packages that come with hosts (sometimes OK) and there are the more granular ones:
Some of the slicker ones:
http://www.netiq.com/webtrends/default.asp
http://www.sane.com/products/NetTracker/
http://www.clicktracks.com/
Your webstats program- "Don't login without it." :-)