In my mind I thought having the plumbing and electrical out of the way would put us at the halfway mark, but by the timeline (which has probably slipped a few weeks because we couldn't get the cabinet order executed on time) we're a month and a half into what will likely be a four and a half month project. One-third. Our makeshift kitchen looks like this, due to the plumbers needing to get at the ceiling:

Kinda miserable.
I think the HVAC guys are done - there's a lot of low-profile ductwork and flex tubing snaking around now. Here's the view from the old breakfast room, with just the remnants of supports left in the middle wall:

In the trench sits the new kitchen A/C feed, routed to the toe-kick next to the dishwasher space.
Check out the view into the basement through the old subflooring:

I'll be happy once the extra crews are out (and I get water to my bathroom again). Nothing against them, but having a half-dozen people descend on your house at 7:30 each morning for a week gets old. Electricians return tomorrow (and I forgot to get speaker wire... oh well) - maybe by Tuesday all the specialists will be done.
At that point we cut a bunch of huge checks, per the contract.