BOOTFAIRS

if you look in your local paper there should be advertised bootfairs,

id recommend going to them, usally they take place on a field early in the morning with hundreds of stalls, you can buy anything you want really really cheap im talking 50p,£1 etc.

it would help if you have a car though as most take place on a field. and the best ones are in kent.

https://www.boot-fairs.co.uk/London.htm