When we were settling the bill the day after, we used cards to pay the hotel bill and gave the wedding coordinator €100 cash for the staff; we didn't specify who to give it to, as I don't know if there's a tip jar or what, but the bar staff were SO pleasant to all of our guests that we really did want to try and give them something, I know €100 wouldn't go very far between the amount of staff that work for a wedding, but we just felt that we wanted to do it. The wedding coordinator made a show of refusing the money and saying that it wasn't at all necessary, as you would!
I don't know if that was genuine or not!!
Sometimes you hear stories about how staff never get given the tips, so it might be worth doing a bit of digging about your venue if you can at all.
I have to add as well, our hotel was unbelievably accommodating, giving us a really reasonable rate because we eliminated certain things from the package, so I felt that they were being more than fair and was very happy with the agreed price, whereas I know it can be different when your hotel is already charging you a pretty steep price.