I so rock! I'm king of the world and then some! Go me!
I just cycled all the way home from work - all 14.94miles of it. And it took just under 90 minutes (plus several minutes for drink breaks). I'm surprisingly not as tired as you'd expect or as sweaty. Thankfully it was quite cool out so that probably helped. I did notice (and this probably helped bump the time up) that my gears are covered in crud - I thought I had extra gears it was so mucky.
I think sometime over next week, I shall make a concerted effort to clean the bike properly.