What I do is go to the Oxfam Bookshop and pick anything that catches my eye.
It is amazing what weird and wonderful books are out there that are not in the mainstream.
Occasionally end up with some rubbish but consider it a donation of £2-£3 to Oxfam.
No offence but could you use a local charity instead? What with all the brew-ha-ha regarding Oxfam.
You know it makes sense! 
