Keeping in touch with parents is so important! I always keep a communication log for every time I contact home. One school required this as part of our Title I services, but I also just find it's a good habit to get into. Reason #1 is because it lets me see which parents I need to get ahold of if I haven't had contact in awhile. Reason #2 is because I feel my log can act as a safety net if I ever have an upset parent come in to complain that I don't keep in touch with them. (Thankfully this has never happened to me, but I like to be prepared!)
So - here is the basic little log I use.
I have set my log up in two different ways in the past. First, I just kept a three-ring binder with numerous sheets. Then each time I contacted a parent, I would write the information down. BUT - that made it difficult for me to go back and quickly see how often I had talked to _______'s family.
So the thing I have found to work best for me is to again keep a three-ring binder, but this time with a tab for each student. I keep these tabs in alphabetical order. It doesn't take me long to see that if I haven't contacted a parent in a month - I'd better get in gear!
At the back of this binder I also keep the original copy of all the newsletters I've sent home. That is the way I communicate with all families weekly. I find this system works great for me!
What type of communication log do you have?