I do a bit of everything too. I have 3 great parents in the daycare but none of them really ask me for much in terms of info.

I send home a daily sheet advising what we ate, how they slept, the diaper details, etc

I also do a newsletter every 6-9 weeks and write any inportant info. I write a summary of what we have been doing and what is coming up and I include a few pages of pictures of their kids at daycare

I also do a bit of small talk with the parents at pick up but usually they are busy wrestling their kids into their coats and shoes so I am glad that I have the daily sheet to let them know about the day in a calmer fashion