"Ripen at home" fruit which doesn't. Its straight goes from rock hard to rotten.
The meat is poor quality now and very expensive. I finally stopped buying it after, at the end of a long week, I treated us all to steak and homemade chips etc. Out of the 4 steaks, 1 was ok, 2 were like leather and the 4th was a sliver of meat visible on the front but when unpacked was about 70% thick white fat. ( I have a photo - would you like to see it?)
The endless reams of paper that come with the till receipts with £0.08 off your next shop or you have save £0.67 on your shop this time, then the faffing about getting all those bits of till paper and Clubcard money off vouchers out of your bag when you pay, while the poor bastard behind you is rolling their eyes in resigned disgust, knowing they are going to have to do the same thing in a minute which will piss the person off behind them ad infinitum........
Being pissed off because it turns out the vouchers were out of date yesterday, because yes, I have nothing better to do with my time than file all these fucking vouchers in date order while juggling all the other things in life.
Am I collecting the vouchers for their 70% off but still massively over priced Teflon coated cat dehumidifiers or whatever the current piece of tat they are trying to flog you is? Am I fuck.
Their petrol prices being significantly different in neighbouring petrol stations. WHAT is all that about??
I could go on. But I'll leave you with Tesco attitude to Christmas. Now I know all the other retailers do it but Tesco seem to take a particular delight in ramming it down your throat for months. Our local store has the tinniest ( as it rattley, weedy, irritating) tannoy system through which they pipe a selection of the worst Christmas songs ever on a permanent loop. Everytime I went into the shop I regretted it, but the decision had been made.
And then, Christmas Eve comes the shop closes. We all have a wonderful Christmas Time just as Sir Paul predicted Day. By the time Tesco open again, Boxing Day, every trace that Christmas ever existed has been wiped clean from the face of the building. One of the check out assistants told me they take it all down after closing time on Christmas Eve - they even get the staff to strip the staffroom of decorations. Because as an organisation they don't give a shit, all they want is your money.
Oh, thats a bit ranty 
And their bread is over priced pants