I was born and raised in London. Here are the 9 of the biggest mistakes I see tourists make.

I see a lot of tourists make the same mistakes when they visit London, my home city. Shutterstock I was born and raised in London, where I've seen tourists make mistakes and waste money. Instead of spending a ton on taxis, navigate the London Underground or walk (when it makes sense). Prepare for all types of weather, and don't forget to order a Sunday roast at a local pub. As someone who was born and raised in London, I've seen tourists make their fair share of mistakes — from unwittingly…