If there is a change you can enter into the drop-down SAC (Suggest a Correction) system, please do so.
Bio info and transfer requests, and other changes not addressable in the drop-down system, send by "other" SAC.
Enter Maiden names when possible.
Consider and respect the context of "flowers" and "tokens" you leave, in particular, religious symbols. If you are unsure of what a respectful token would be for the entry in question, a flower or candle is always appropriate.
Take up-close, careful shots of photo-ceramics on graves -- due to vandalism and time, many may never been seen again, after you leave.