Lifelong sounds like ditching the Tesco card is an effective decision!
Cathode I shop with Ocado mostly. I often buy their own brand (eg pasta) and don't find it more expensive than the big supermarkets, and it has the advantage of selling all the Waitrose stuff, some of which is really good. I don't think we would save if we shopped in another big supermarket unless Aldi /Lidl. However, I don't do weekly shops with DS at all as he can't handle it, online works best for us and reduces my impulse purchases!
Big spend yesterday, over £200 in Homebase buying paint and other supplies for the hallway and a standing lamp (half price, clearance stock). Got to go back again tonight for primer, as I wasn't sure what I needed to get. Work starts tomorrow.
Incidentally, it said on my Homebase receipt that nectar pint collection and redemption at home see stops after new year. Shame really, I almost never shop at Sainsbury's as it's not my nearest but I have evidently spent a lot in home ASD over the years because I now have over £150 in nectar points 