Greasing Cup and cones- I bloody love that, headsets and BBs too.......rethreading used cable- only ever do it by choppin' a nice new cut- usually making rear gear/brake into front- mostly buy new ones!
And wheel buildin'- aye, its an arcane art........truing already built up wheels is hard enough- to build from scratch, with dishing and stuff, ye basicall have to stand at the crossroad at midnight and sell yer soul to the ghost of Tommy Simpson.........or somethin'........