Organize the basement
Move the contents of the second floor
Move a chunk of store stock contents to the craft room. What's that? When you close a storefront and return to your online roots you need to store the inventory somewhere? That craft room will surely have room for that stuff...
Purge all unnecessary crap that doesn't fit into that room (tidily). I've been working on that for a while -- some things have actually been thrown out! The bottlecap collection from when I was a child was actually in the wastebasket until I noticed people selling bottlecaps in worse condition on ebay for a dollar each. Also, when you have eight years worth of Official Playstation Magazines you can't just throw that out... you know, in case you need to refer to the out of date previews later... hey, I managed to trash a years worth of magazines that were mostly paid advertising...
Assemble the big boy bed in the old office. This should be easy, it's from IKEA of course. The big issue is getting it set up early enough that Kiernan doesn't associate the relocation of rooms to the appearance of babies... oh, and did I mention he doesn't like sleeping in actual beds?
This'll be fun.