Oh and the only complaint I had about the inclosures in my invites was from someone who complained about my inclusion of an information sheet- we were getting married at the other end of the country from my family (not a destination wedding, close to where DH and I lived and near his family), plus as DH had previously lived overseas, we had a lot of guests either flying in or getting the eurostar over.
So I added a sheet with a map with the hotel location, directions from the motorway, details of the nearest train station (and which station in London the trains went from), the numbers of 3 local taxi companies, details of the discount if guests booked the hotel we were getting married in, plus details of the local travelodge and a link to a council website listing local B&Bs.
I thought I was being helpful, but apparently, this should have been a separate mailing with the gift list for those who'd agreed to come and specifically asked for information, because it was presumptious to assume they would accept and would need to know these things. Apparently, it also made people feel they had to stay over and might wanted to drive home straight away.
This is the same person who complained that I should have given my 18 year old cousin his own invite rather than writing "Uncle X, Aunty Y and Cousin Z" - even though he was still living at home and doing his A levels, having turned 18, I should have treated him as a separate adult. (Cousin didn't seem offended, Aunt just seemed happy he was invited...)
I realised when it comes to weddings, some people (particularly in an older generation) seem to look for reasons to be offended.