I never wanted to tally up all that I spent. Often, it's best not to know, right? Especially during the 90's when spending wasn't an issue, but I wrote a very detailed service manual specific to my car that is a hyper-linked WORD document that is currently 138Mega-Bytes and growing. Whenever someone posts something that you don't want to forget that applies to my car, too, I grab it and add it to my manual (like the bearing part number for my alternator!).
The hyper-links are cool: Bring up the table of contents and click on the category you want and it takes you there, then click on the topic and it takes you there. It's structured just like the Bentley's VW Service Manual for 1970 but is specific to my car with sources and part numbers for just about everything.
We had a three-day snow storm back 7 or 8 years ago and I started this as a way to pass the time and then it snowballed (wicked good pun, there). It's been handy for me and others on here needing info (especially because I can't remember 9-digit part numbers that well anymore!). Just plug in the USB drive and there it is!
If anyone wants to see an example, let me know and I'll post the ToC and one section.