I bought 32 and wished I got another 6 for the south west aspect of the house ... but still, producing 11mWh a year in the UK on an east/west aspect, electricity bill for the year (even with all cars in the household being EV's) is negative. Battery makes the difference - load shifting is doing the heavy lifting in the winter.
Lots of written work pre 1582 that needs to be accurately catalogued.
Source: I used to work on one of the first computerised library management software systems, and plenty of our academic customers had manuscripts dating back that far.
Yep - it's a game changer on the Pendolino trains I get to work as they tilt going around corners. Most people seem to be fine, but for me, it was impossible to get some work done on my commute until vehicle motion cues were a thing and I got > M2 MBP for work.
On SFO to LHR flights I tend to eat in the lounge, down a shot of Dream Water and just sleep until LHR.
Sadly the Virgin arrivals lounge closes by the time you get through immigration and baggage collection, so you'll need to grab a bite to eat, but it's not the end of the world. I can usually average 6-8 hours of decent enough sleep doing that.
I had a drive go bad in my 4 year old home-built NAS a few weeks ago, and it cost 2x what it originally did to buy the same capacity drive, and that was going to a grey-market importer on eBay, it was more on "reputable" sites.