I developed a bad "addiction" to Loctite from my years riding a hard-tail Harley Panhead - where I would use it on everything - and it worked! I did find that red was all I needed and carried. I found that the trick was in the amount applied. On a 10-32 rocker cover screw, just a small drop and more coverage for the larger bolts. I never pulled a thread, stripped a fastener and that was the secret behind my Panhead never leaking (I know, hard to believe, but...). The big thing I use now to determine a need for Loctite is the vibration the part is subjected to related to the torque of the fastener. I don't see many areas on my Cherokee where there is alot of need for it, but I still carry a small tube in my kit.
As a side note, there is some info online related to a fastener study done by NASA and there findings on the "helical spring washer" (lockwasher) - bottom line is worthless for locking a fastener since it is a flat washer when torqued and any locking action is nonexistent. Russ