Hello! I did a search and didn't find this exact topic, so hopefully I didn't miss it here.
When we visited Paris last year we got lost a lot until we got the Paris Pratique, which (I hear) many locals use. If you're not familiar, it's in book form and small and thin, so easy to carry around.
Is there a similar map that locals use in London? If so, should I wait until I get there to buy it? Are the London streets as confusing as the Paris streets? I've never been there before, but visiting next month.