I don't use the wipes anymore - only hand washing. Too many people rely on those wipes to clean their hands after activities (so instead of going to a bathroom to wash their hands before heading into the buffet, they use a wipe; after attending an onboard activity, people head directly to the restaurants and hey, because they use a wipe, their hands are clean - not!).
The wipes they hand out do nothing against any serious illness like Norovirus - they just give a false sense of cleanliness (which is the trap I fell into on the first DCL cruise).