Here is an idea you can use. I have done this recently and think it is a good habit. After my funeral message, I have asked the family if they wished a copy of my message and would send it to them for their own records. Why do I do this? One for closure. People like to have something special and remember their loved one in their final good-byes. Secondly it helped showed I cared to give them a copy and that extra something they can cherish. And finally it says you're trying to be helpful in people's time of need. Don't forget to follow-up on those hurting and griefing.