Scanning it.
HAHAH; OMG I'M SO SORRY BUT SERIOUSLY! It looks way better on the computer than on the paper for some odd reason!
Here's some examples:
I rarely do any changes after I scanned it, I always make sure that they're in B/W mode before scanning. I might edit out a few things but that's actually quite rare.
Here's another fine prime example:
AS you can see, the latter was completely changed with colour, for some odd reason I thought pink would go very well with a horror story.
Follow my advice: It doesn't.
(So basically, I just scan the pages, pray to the lords all mighty and hope for the best xD)