Oh, Man...this has potential to be a long thread w/ many replies...but I'll bet many post for the same items...
Here's mine...
1) Good diagnosis / action plan for my timing chain rattle(s)
2) New tensioners (rear external to start)
3) A pre-oiler system (much interest in StreetRod2000's setup)
4) Fix the ABS light issue (supposedly rear sensor)
5) Fix air bag light issue (again - better)
6) Install new evap canister purge valve
7) Wheel bearings - especially front pass side
8) Install new solenoid pack for tranny / new fluid / filter
9) Recondition roof rack rails
10) Recondition lower rocker / wheelwell / bumper trim (currently OEM gray)
11) Fix the one small rust spot on inside of driver's rear door frame
12) Install powered sub to go with new BT-equipped radio (e.g.; Infinity BassLink - I've had one of these laying around waiting for a suitable application)
13) Address the parking brake / bleed brake system
14) Flash PCM w/ last revision for my VIN
15) Replacement of vehicle with a 09-up V8 Explorer
16) Replacement of vehicle with a GM 360T series w/ 4.2 Inline-six
Guess I'll stop there...
And after writing all of that, and fixing everything so far that I have in about 8 months of ownership... I still enjoy driving / using my Explorer! (my 2nd...had a '99 before this one)