I have written before about the perils of being a consumer, ethical or otherwise, and exactly how difficult it is to not consume anything.
Or is it?
With the fantastic slogan of 'shop less, live more' the wonderful website of BND encourages you to spend a day without spending and find other life enriching things to do instead. It even has an events section where you can go and spend a day with other people who are also not spending but doing something creative and nice.
Or stay inside and clear out the wardrobe to give to charity, go for a walk in the woods (or anywhere for that matter), bake a cake, visit a relative or neighbour (with the afore mentioned cake if you are really organised) or make something for someone for Christmas.
Once you put your mind to it, there are loads of things to do for free.
Enrich both your pocket and mind...and have fun in the process.