Card Verification Code can be found on the back of the card, usually
within the signature panel.
can be found on the front of your card, just above the
number on the right side.
I do not have any professional cleaning experience but I have cleaned my own place. I am one of those people who washes floors by hand (do not own a mop) and wipes down moldings with every cleaning, gets into the nooks and crannies.