I totally agree with the red tin of spiced biscuits. They make nice Christmas presents.
I get our cling film, baking paper and tin foil from there. They genuinely last years and years.
They do really good quality thick paper plates if you are hosting buffets/parties.
My two favourite blankets are both from Costco. One I've had around 12 years, it's been washed and tumble dried countless times and it's still perfect.
Food wise they do a pack of 10 or so flatbreads in the bakery section. They are listed as naans from memory but they are amazing and so versatile. I do use them with curries but also as bases for homemade pizzas, or as flatbread wraps for a kebab style dinner. They're lovely.
Peanut butter pretzel bites are amazing, as are the duck bao buns and chilli cheese bites in the freezer section.
If you're hosting any parties get one of the massive bags of pink himalayan salt crinkle cut crisps.
If you like spiced rum and they have a bottle of Bumbu rum then grab it!
Fresh food to take home for dinner we like the beef stew with dumplings and the loaded "dirty" potato wedges, or one of the giant pepperoni pizzas.
Get a hotdog and a drink from the café at the end for £1.50.