Good point. Appreciate your concern, but I wasn't being clear. By time to "burn" I was referring to all the time I had in my twenties: when spending an evening

Good point. Appreciate your concern, but I wasn't being clear. By time to "burn" I was referring to all the time I had in my twenties: when spending an evening or a day or a weekend doing nothing in particular didn't seem like much of a waste. Whereas now, "me-time" comes in much smaller units (maybe an hour after the kids are in bed and before I get tired). And I'm very careful to invest it: I recently spent eight months studying UX on Coursera, and am getting back into electronics and Arduino after a break, for example. I just don't have big blocks of time any more. Certainly not whole weekends.