You have hit the Jackpot of all Tech Tips. Hopefully the following 36 Mechanical Tech Tips will make up for 36 months of neglect. 
1. Do not ride slow rebound rubber tires in the winter! These soft compound tires are temperature sensitive and become as hard as skateboard wheels when riding below freezing or in snow/ice conditions.
2. Do not over tighten your brake lever and shifter clamp bolts. A lever/shifter is less likely to bend/brake off if they can move during a crash and will be easy to align after a crash. Properly tightened lever will require a punch/slap to move them back in place.
3. Build your wheels with DT Swiss “Pro Lock” spoke nipples. You will never have loose spokes again, (unless you flat spot). Pro Lock nipps are available in Alloy and Brass (so sorry bling addicts: black color only).
4. Align your tires logo with your valve stem. You will look like a dork if you don’t.
5. Put a drop of Blue Loctite (#242) on your disc brake caliper bolts and rotor bolts every time your remove them.
6. Change your chain 1 to 2 times a year to prevent excessive wear to your bikes expensive sprockets.