Today I wore a tie to work, and told everyone it was "dress up Friday". Of course, this has been done before.
At lunch most of the office was together at the pub, celebrating a software release. I had an entertaining discussion with the Technical Director about how our next major version should be developed - we disagree. But it seems I've convinced several key people of the merits of basing our work on a third-party distribution, so that looks promising.
Stepping back a moment, I'm quite pleased with the changes I've been able to make since joining the company ten months ago. There's always more to be done, of course - but it's satisfying to make a difference.