Today's update ( Saturday ).
I'm in the Sainsbury's cafe this morning. I arrived at opening time ( 8am ) to ensure that I got one of the optimum tables. I love these as there are 4 of them, and they are like mini-cubicles with two bench seats and two 13 amp mains sockets, and two USB sockets. There is room on the table for both computers and breakfast.

I started my node, which was 3 days behind, and it is sync'ing at 4k/bps on the notebook. The notebook is fairly low spec by modern standards. It is a Huawei Matebook with a Core 15 processor, and limited memory. I upgraded the hard drive to a 2Tb ssd, and this made quite a difference to sync'ing speed. Another useful feature is that the power source is via an USB-C connection, and this means I can recharge it in the van through the "cigar lighter" socket whilst I am driving.

I'm a bit miffed at the moment, as there is a guy on one of the premium tables that has been here for a couple of hours, and he hasn't bought anything. I always buy a coffee at least to pay the "rent". £2.30 for an Americano ( if you bring your own mug ) is pretty cheap. Especially as I am re-charging two computers, my'phone, headphones, and the battery for my angle grinder. The staff and some of the customers are quite friendly, so I get some good social interaction. I also get some interest in Bitcoin if I leave the network traffic screen in core running.