I know that wiping the surfaces with disinfectant wipes feels like you are doing a good thing to kill any germs or bacteria on the surfaces, but you might be wasting your effort and not even realize it. I'm looking at the package of Disinfecting Wipes sitting here on my desk (Lysol Disinfecting wipes) and if you actually read the instructions it says, "To disinfect, Allow to remain wet for 4 minutes". I don't know about where you live, but when I wipe down my laptop or whatever, the surface does not actually remain wet for four minutes, the solution evaporates much quicker than that. So I guess I'm not likely reaping the benefits of the disinfecting. And people wiping the tray on the plane are probably not keeping the surface wet for a full four minutes either.