I've since developed another short cut, which also helps cover up a physical limitation of mine and, in my opinion, looks better. I used to do several sketch layers in different colours and refine the drawing with each layer until I was happy with it, then I'd do ink in black.
Now I simply do my final sketch layer in black and call it my ink layer. I will still usually refine some things during colouring, but for the most part it goes straight from final sketch to colour. The resulting drawing has a wilder, rougher look, but to me it looks better, and it covers up the fact that I have very shaky hands and struggle drawing smooth lines. Cutting that final "smooth" ink layer saves a lot of time, a lot of aggravation, and produces a nicer drawing.
Here's a drawing of Daecon done in my old style, with the "smooth" ink
And here he is in the new style, with "rough" ink: