1. Learn new things: If you could not find some time to exercise or practice yoga,weekend is the right time to do these things. You could join in yoga class that are running on Saturdays or Sundays,If you are a martial artist lover,enroll yourself to a martial-artist class.
2. Discussions with Family Members or friends: I think weekend is the perfect time to sit with your family members and discuss issues pertaining to them.You may discuss your goals with them.
3. Social work: If you want to do volunteer for some organisation,weekend is the right time to do.You can teach kids for free,this can provide an opportunity for children's to learn new things.
4. Spend less time on Internet: We may spend a lot of time on internet,If you cut down on this time,you make some time for yourself,it can be used to spend with your family members.So let's ask your family members to minimize the time spending on Laptops or Smart phones during weekends.
5. Make a plan for upcoming week: Smart people make plans in advance.You just find some time to make next week plans,like where to go and what to do.