I grind the night before, after he's in bed. I'm very cavalier with my mash times - if time is going to be tight, I'll do an overnight mash or start the mash in the morning and boil in the afternoon during nap time. With the kettle (BIAB) on a mat on the ground and a thick jacket around it, the mash doesn't lose enough temperature to get into souring mode in the hours between mash in and pulling the bag. I actually do longer brewdays than I used to, though, because I make double batches in my 34L kettle; one 6-7 hour brew day goes down better with the wife than two 4-5 hour ones. With your ability to do 10g batches on your system, you shouldn't have any trouble. In my case, I have to get creative. I split some batches unevenly with more top-off water in one for different strengths, vary the batches with different yeast selections or cold-side additions like dry hops or candi syrup. I'm planning on splitting a batch as an APA and an oatmeal porter next time by doing a fairly simple grainbill for the primary mash, pulling a portion of the wort post-boil and mixing it with a separate mini-mashed wort with all of the roasted grains and oats for the porter, and doing all of the APA's kettle hopping in the whirlpool after pulling the portion that goes into the porter.
Oh, and since there's a lot of down time in a brew day, I do my best to either clean (shortening the brewday) or dad (reducing the parenting load on my wife) during those downtimes. If I took brew days for granted or tried to make them my sacred personal time, I would find them much harder to come by.