Food processor/blender. A cheap and cheerful model, struggles bravely with Nakd-style bars but is still a champ. I've had it for about 10 years I think and it cost not very much, under £50. Here it is blending some soup.
Ikea cup and saucer. We have two of these and they are rarely out of use, there is always one or both of them in the fridge storing chopped up something or other, leftovers, half a tin of tomatoes or beans, the saucer acts as a very good lid. We also use it as a soup bowl and sometimes to drink from. These were some of the first things we bought when we moved in together so they've been working hard since 2001.
Le Creuset pan. One of the things we bought when we spent ridiculous amounts of money on all manner of things, it just turns out we bought some good things occasionally. I use this pan virtually every day, it's ideal for the kind of cooking I do, even on our not very good hob. Another thing we've had for ages, we bought it from Allders in York the day Dan found out he had his first "proper" job when he finished his Masters, so it must have been summer 2001.
These are the real hard workers and do the twin duties of making sure we don't waste anything and that we don't over eat. The ladle and slotted spoon (we call it "slotted pig") are ideal portion size measures - two for a light meal, three for a main meal sized portion. Slotted pig is also a handy draining device for smaller amounts of food. The scales and measuring cup are for pasta, rice, grains, noodles etc. I can still remember the day I first measured a proper portion of pasta, it made me very sad! The little spatula thing is brilliant for getting that last little bit out of jars and bottles, and for nudging things from the back of the pantry when I can't quite reach.
When I said in no particular order I was of course lying, the most popular items in the kitchen are the coffee and tea pots. I would have thought there was no explanation needed for these. The teapot came from the charity shop last year and was a couple of quid. I think we bought the coffee thing from Lytham, but I can't remember where or how much - priceless.
Does anyone else have favourite kitchen items that you wouldn't choose to be without?