The day after I didn't even bother to show up to work for obvious reasons.
That was until I figured that no matter how much work I will put in, the product ship date is slipping and so are the standards that we will hold it to. I reduced my work time to 8-9 hours, and started coming earlier, 10am instead of 2pm. After all my co-worker of whom I'm in charge needs me, and I need to be able to get back home in a "normal" hour.
It still doesn't give me enough time to play with Free Software. I need to find a way to make days of 28 hours long or so.
I did advance in implementing a Bookmarks utility, inspired by a co-worker. The idea is to have bookmarks not in an hierarchical system as the browser keeps them, but indexed by keywords. Coupled with a simple search on that database makes it easier to find the bookmarks I want.
It's still an early version, but it's working nicely.