My D800 has been through enough that some of the external buttons are starting to get sluggish - i.e., they have become hard to press and feel like there is some buildup around them in the gap between the button and the body. Also, my rear wheel that you use your thumb with has started to feel kind of squeaky and not quite as crisp as it has been.
Is there any kind of quick cleaning process I can use to try to free these up? Likely they just have deposits from handling, sweat, dust, etc.
I assume I could also send it in to APS and have them do it, but if there is something simple I could do myself that might be good enough.
Thanks -
John