I put higgins waterproof black ink in an empty film canister for easy travel
and refill. I use a paper town and saliva to clean the nib. I’ve found that
water or soap prevents the ink from holding to the mettal as well. My inking
proffessor said that he’s found the best thing to clean a nib with was a coffee
filter because it won’t leave paper flakes. I’ll stick to my saliva and paper
towel though.