Instead of cloning well known sites I would talk to people and try to solve their problems. There's a big difference between people telling you they'll use your

Instead of cloning well known sites I would talk to people and try to solve their problems. There's a big difference between people telling you they'll use your product and people actually using it. The bar is extremely high since your product has to solve their problem, it has to be better than the alternative, they have to remember to use it (or you have to remind them) etc. You will learn a ton and might produce something useful. Wish I had done that more especially as a student!