Starbucks

You know the drill with Starbucks, but this Milner Place location is genuinely convenient if you're working or killing time in Elephant & Castle. It's the sort of place where you can actually set up your laptop without feeling guilty about nursing a single espresso for three hours—the wifi is solid and staff don't rush you. The neighbourhood's been changing rapidly, and this cafe sits right in the mix of it all, so you'll catch a proper cross-section of locals, commuters and people passing through. Nothing fancy, but it does what it says on the tin.