Wash and dice cucumbers.
Wash then halve the cherry tomatoes.
Finely dice the red onion.
Add the vinegar, sugar, salt and pepper.
Mix well and cover your container and refrigerate for 30 minutes or so before serving.
Keep in mind when you dice the cucumbers the cherry tomatoes will be slightly larger. Make sure to have tomato and cucumber same in size if using anything other than cherry tomatoes.
Tomato and cucumber salad will store in refrigerator for no more than 2 days.