Okay so.  Sometimes you do a pencil drawing and you really like the pencils, but you also want to darken them a little and make them a little less prone to smudging.  This technique works well with anything you’d normally layer over graphite- there is still some left over, so it can smudge.  I’ve used this with colored pencils and Photoshop.

It probably seems really straightforward and dumb but yeah.  I thought Rosa might be interested.  I use a Faber Castell Pitt pen in Warm Grey III, but any grey should work.  You don’t need a very dark one- the goal is to darken the pencils a bit and lock them in.  I’d imagine that a plain old ink wash with a small brush would work about the same.

Okay so.  Start with your pencil lines, like normal.  I usually clean them up a little, but not too much.

It's Raz art today. Who'd have figured.

And this might seem really easy and dumb, but just go over the lines very lightly.  I never try to fill them in, just give them a quick brush over with the pen, since this isn’t like regular black and white inks.

It's a small change, but you can see the difference here.

And then all I do is lightly erase.  I don’t completely erase the pencils, but just enough that I don’t have stray lines from the sketch.

It’s a good option for when you’d like a slightly darker linework, but don’t want a harsh black line.  Here it is with colored pencil:

Or, it also makes for a pretty okay line for Photoshop stuffs, especially if you’re looking, again, for a softer line.

Okay, that’s all I got.