What are the things you hate to do in model railroading?

[modelsof1900]

So you're telling me that going through several springs with them flying off into oblivion constantly is not frustrating? They may not cost anything, but if you have more than a few couplers to "respring", it can be annoying. I'm sure it gets worse as we age and little things like that in HO are impossilbe to see or hold steady.

Ok, coupler springs jump off and you will not see them again. I use the smallest screw driver (with parallel extent at end!) and pick up a spring between last two wires if the helix, or shorter. Set the long end of spring on tip of knuckle and after set the short end to tip of coupler head. Ok, I use a magnifying glas however so I have not (big) problems. And now my hands and fingers are not longer the finest or freshest when I will go to 68th. However it will work.

@Reinhard, very good verdict!