I just went to a wedding on Friday. It was the first wedding I've been to since I started planning my own so I know I was more critical than the average guest. They had a couple things that were off and I thought I'd share so we could all learn from it.

They did not have programs so I didn't know who anyone was. There were no ushers so the guests were all spread out and there was a lot of open space in the front of the church. The dj was not prepared with a list of names for the grand entrance at the reception. They didn't announce the cake cutting so everyone missed it. They also waited too long to serve the cake and many guests had already left.
There were a lot of great things about the wedding. It was beautiful. I loved the colors (plum and berry), the bridesmaids dresses and centerpieces, etc. Just thought I'd advise about the dj info, programs, and cake cutting. Sorry if I sound like a snob!