One thing that I do it go to the same place every time to get my oil changed. Most of these places keep your maintenance history in their database and the programs give an "alert" to the attendant to mention that you might want to have your tires rotated (every 6k miles), your transmission fluid changed (every 24k miles), differential fluid (once every couple years), fuel filters (24k miles), air filters (should be checked at every oil change), etc. Personally, there's just too many things to keep track of w/ everything else going on, so I just found a place w/ a bunch of guys I could trust and take it to them every time.
People throw away what they could have by insisting on perfection, which they cannot have, and looking for it where they will never find it. - Edith Schaeffer