I normally arrive at 6am (as early as the tube allows) and at this time you will get a ground pass and be in the ground for the start of play. In fact you're almost guaranteed to be in early enough so the cattle pen hasn't been opened, therefore you can be involved in the good old scramble for the best seats, with the stewards' cries of "Don't run please!" which obviously go totally ignored lol. Best part about getting there early like 6am is that you'll almost certainly get the chance of Court 2 tickets, for the first 3 days anyway, probably the first 4 in my opinion. I've got Court 1 on more than one occasion and had the opportunity for but never taken Centre Court. I'm a strong 6am advocate but one of these years I'm gonna bite the bullet and camp out!