1 week in. Weather is getting hotter. Code is being written. It's great to be seeing real progress.
To tell the truth, I've previously spent a few weeks working full time on Sublime Text, so this isn't entirely new. I'm addressing some of the bigger areas of work that I haven't had an opportunity to in the past. When you've only got weeknights available, it's harder to justify work that doesn't have an immediate result.
It all comes under the 'Things to do before launch' category, seeing that list get smaller is great.