The grocery stores sell little bottles of sundried tomatoes, packed in oil and vinegar. These are tasty, good in salads, sandwiches, wraps and many other things, but at $3-$5, you don’t get very much for the money.
You can also buy whole or halved sundried tomatoes in bigger packages. For $10 I can get a sizeable shrink wrapped bag of these at the local grocery store, which can then be cut into slivers
Place these into an empty washed jar,
add some oil and vinegar 
a bit of salt, and then shake vigorously, resulting in a slimy looking mix
Let this sit for a day or so in the fridge, and it will be ready to eat (it will also loose the slimy look that occurs just after shaking).
You’ll get a large number of batches out of the bulk sundried tomatoes this way, with not very much cost in time to prepare.
Enjoy your salad, sandwich, spaghetti, or many other things that are good with this nice topping.