For the most part, people tend to give and up and give away/throw out their denim once it gets to this state:
|Photo via Google images.|
There's a neat, little tutorial on Youtube (HERE) that you can try if you happen to be good with a sewing machine. However, if you're not, darning is a relatively easy task for a tailor to do, so don't worry.
*We added "reluctantly," because we know that sometimes, letting go of a pair of your favourite pairs of jeans, wrecked as they are, is a near impossible task for some people—you know who you are.