tomorrow no good for me either, i'm a parent helper on a school trip to cogges farm, one dad, a couple of mums, some teachers and 40 6 yr olds.
any other lunchtime fine, can get you out some other good stuff as well. we have a marvellous map, in 4 shts, of the avebury area done by a local vicar in 1884 with all the local antiquities coloured in different colours and, if you're this way inclined, a german invasion map of oxford from the 2nd world war