For digital, I use primarily 330ohm (220 - 470ohm works), 1k, and 10k. I have some 100k resistors but I don't use them as much.
I have maybe over a thousand 5551/5401, and a drawer full of irf540 (not the N-type). I have also a lot of 15028/15029 (quite similar to bd13x). For capacitors, I use 0.1uf ceramics, 4.7uf electrolytics, and some 15/18/22pf ceramics.
I have over a thousand SG615 oscillator and maybe a thousand crystals of various speed.
I think that should cover 99% of what you need. For the rest, I buy on an as needed basis.