Drying tomatoes is a good way to store some of the summer for the colder months. You should pick a day where you're planning to be around the house, as it takes many hours to dry the tomatoes, and you need to start checking them after the first couple of hours to remove any that have fully dried.
While you can dry any tomato, I started with a large colander of cherry and grape tomatoes.
dried tomato pesto in the next week or so. (Don't leave dried tomatoes in oil in your fridge for more than a couple of weeks. The first year I dried tomatoes, I stored all of them in oil in the fridge. I ended up having to throw away several jars of tomatoes that had gone bad, which was very sad.)
I use them on pizza, in quiche, blended with feta cheese as a spread, and to make dried tomato pesto. They are also good as a snack (particularly when you're pulling them off the trays when first dried).