What I'd do is write a list of 6 fun things you'd like to do this Saturday (either alone or with a friend) eg;
Go shopping in the Metro Centre for some new clothes
Go out for a nice meal
Go to the cinema
Have a day trip to Durham and row a boat on the Wear
Have a day trip to Bamburgh to see the castle and walk along the beach
Go on a pub crawl on the Quayside (starting at lunchtime)
Then give each option a number, shake a dice and do whatever the dice decides. (a la Luke Rhinehart).
Let fate decide your Saturday.