How to replace a bottom bracket

Based on my experience in replacing my bottom bracket today, the UtahMountainBiking.com Fix-it page has excellent advice on how to replace the bottom bracket on your bike as well as a number of other small jobs like replacing a cable or changing your brake pads.

As usual, Sheldon Brown's invaluable Bicycle Glossary was useful in identifying the part and listing useful characteristics, such as which side is right threaded and which left threaded (a very useful thing to know before you start cranking on something with a two-foot long wrench handle . . . ).