Here is something you will not be too focused on when you buy a house, but which is very important to do: get a forwarding address for the people who sell it to you.
Why do you need it?
1. For them, so you can forward their post.
2. For you, so you can ask things like 'what day are the bins collected?'
3. For the ESB, to allow you to fill out a change of ownership form for the account.
4. For telephone company if you are transfering a line.
There are a load of other reasons, so if you can at all get one. If not you can always use their solicitor.