I use a french press every morning at home, but on bike trips, like with my view on the pots topic you asked about, I am happy keeping it simple and less space by using those nice tasting little instant package thingees that are found in all grocery stores.
Again, to reduce a bit of weight and space, but I acknowledge that I'm not a coffee connoisseur and am fine with the little individual packet things. Some of them are quite good, with built in cream or whatever.