It's a bit silly isn't it. You need 12 hours every two years to keep the license but you could do it all in the last week having not flown for 23 months. You could also do three circuits first and then take passengers with you for the other 11.5 hours.
If you are renting though like Whopity said, all clubs and schools will want you to fly with an instructor if you have not flown one of their aircraft in the preceeding month or so.