Try to buy your tools in sets...
1. Spin Doctor sells the complete black, red, green spoke wrenches as a set - or by the triangular 3-in-1 from Park/CN/Lifu.
2. Definitely get all the freewheel removers you can...
3. Get a combo BB lockring AND cup wrench - Sugino is an example.
4. Get yourself a torque wrench adaptable for 8mm,9mm,10mm allen - and 14mm/15mm sockets.
5. Get yourself combo headset wrenches - try to cover most common in two total.
6. You probably already have a small, medium and large crescent wrench with your latest acquisition.
7. Get yourself one long handle 10mm allen and one long handle 11mm allen to handle freehub replacement.
8. Mallet
9. Dental rinsing syringe. Cut off tip halfway - makes a great el-cheapo grease gun.
10. Buy a few el-cheap combo standard/phillips bits at the checkout counter. Ground the sides of the standard down 1.5mm leaving the middle intact. Viola! Your own nipple driver...
11. Good quality steel caliper...measuring is an important part of any tool kit.
=8-)
__________________
5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life