COSTCO your best buys

Over the years I've found the Lidl shopping thread very useful and wondered if anyone wanted to share their Costco recommendations?

I've found you need to be quite careful shopping at Costco as the prices are not always cheaper. Don't forget to check the price including VAT if applicable. Also, it's easy to get carried away buying things in large quantities that you don't have the storage space for, or catering sizes that you can't use fast enough. However, you could always split a large pack with a friend/relative. If you're not sure you'll use it then don't buy it! Remember you need to recover the cost of your annual membership before you save anything although this can be done in one hit if you buy a large item.

Brief details about Costco on their website http://www.costco.co.uk/default.htm
NB They don't take credit cards.

My regular or recent buys are......

wine (current favourite Casillero del Diablo, was Fetzer Merlot but not sure if they have it anymore)
own brand water 35 x 500cl for packed lunches (but don't forget to recycle!)
parmesan cheese (Reggiano)
Ottavio extra virgin olive oil 4x1L multipacks
Robinsons summer fruits 4L (decant into a 1L bottle)
skippy peanut butter
finish dishwasher tablets
persil gel tablets
comfort easy iron 5L
huge bags of wild bird seed/nuts (way cheaper than garden centre prices)
black peppercorns
saffron (multipack,way cheaper than supermarket but find others to share with!)
sourdough baguettes (if you like this type of bread)
mini garlic and coriander naan breads
mini goats cheese discs (long date, ideal for snacks, tarts etc)
cucumbers (2 huge ones for £1.49, better value than Tesco/Sainsburys)
baby tomatoes (though like most stores these can vary)
duracell batteries
glide dental floss!
toothbrush heads
lawn fertiliser/weedkiller granules, big box, seasonal

Well that's enough for starters but over the years we've also bought electrical goods, home furnishings, clothes, books etc.