If you're just happy to see any game, then if we draw a smaller team particularly a lower league team at home in the early rounds of one of the cups, you'll have no issue getting a ticket for that. For league games you probably will struggle, and without a membership it's virtually impossible. If you do buy a membership (make sure you get light membership, the other one is a waste of money and gets you no more ticket opportunities) then you'll have a chance to go in the ballot for the less popular games in July and November. If you're unsuccessful in those, you still have the chance to buy tickets for individual games in a member's sale nearer the time, but this is difficult and relies on you getting lucky in terms of a queue on the website on the day.