Every year The city of Nantes organises La Grande Braderie with around 800 vendors selling their goods at bargain prices to make room for the spring / summer stock. With reductions of between 30 and 70% on old stock .. it might be worth your while taking a look.
What’s more .. if you’re travelling via TAN then a one hour ticket is valid for the whole day.
Now it just remains to be seen if the Manif will be hitting the city centre tomorrow!