So the U lock and cable lock combo is pretty good? Only thing is I would like to get a cable lock that I can fit in my saddle bag. Would a 6' x 3/8" cable fit in a saddle bag? Be long enough to get both wheels if needed? Being able to fit a spare tube, tire levers, phone, wallet, and the lock would be awesome but doubt that is happening.

Edit: the bike is a 1993 Trek 2500 pro. Not very expensive, but looks flashy.. also not sure if I should do anything to prevent brake theft or to put solder in Allen bolts..

The bike will never been outside overnight, it'll be in my house. Just be outside while I'm in class if I cant find a spot for it indoors.

I also already have a U lock.