For an absoultely top notch expert luxury shave, visit T&H on St James Street. I've been twice and it is a great experience. There's an older guy there called Jimmy (I think) who hails from Cyprus originally -- when you call to book, make sure you ask for him. He is a master and has been doing this for over 50 years. Great hands and amazing technique. He can come across as a little surly, but as soon as I told him I used a straight he started talking and gave me a 20-minute tutorial on everything from how to shave the top lip to stropping on the hand.

Can't reccomend it enough. And when you finish your shave, you can nip across the road to the original DR Harris. It's a great street to walk down.