Getting the seal off the top of the milk bottle cleanly. If it doesn't come off properly I have to stand and pick at it until it's all gone, so a clean sweep is the opportunity for joy.
Standing staring up at a really enormous tree. Bonus points if the sun's shining through the leaves too.
Also all the plucking hairs ones, getting that bulb on the end is amazing. Bonus for chin hairs as they're so bristly.
The first use of a bottle of shampoo or conditioner, when it's so quick and easy to come out the top. More pleasurable when the previous bottles have been upside down for ages.
The feeling and squeaking of walking on snow.
Really good crisp ripple marks on sand when the tide goes out.
A well built bit of dry stone wall. Could stare at it for hours. When DH brought the boxes of Christmas decorations from the loft of our old house, he managed to fit them all - sixteen of them! - into the Golf. The arrangement was beautiful, I don't know how he managed it. (It's usually me who manages to get the whole shop slotted into the fridge tetris style.)
I once had a blob of the white sticky stuff you get in your eyes, but this one went in a long string all round under my eyelid, and when I pulled it out it tickled divinely. It was so fabulous I couldn't speak for a minute.
I dry my hair in my bedroom and the carpet gets covered in hairs. If I rub my slipper repeatedly across the carpet I can get it matted up into a dreadlock. Gross but so satisfying to pick up and chuck it in the bin. There's still loads for the vacuum's brushes though, bleugh.