Top secret Brown Sign Mission: Codes, 1984 computers and reusable condoms

I've wanted to visit Bletchley Park in Buckinghamshire for some time. I like all things history, war and intrigue and Bletchley Park, where ingenious code breakers spent sleepless days and nights in make shift huts cracking the infamous German Enigma code, has to be the place to go to get all that. A good friend of mine (who also happens to be my ex-boyfriend) volunteered to come with me, good thing too, how else would I have completed the "know your planes - friend or foe?" game with almost 100% accuracy?
Having suffered in the last few weeks from a serious cash flow problem (read: cash non-existent problem) I haven't even been brown-signing very much at all, so I was a bit nervous about talking to Bletchley Park's Retail Manager about my project and the museum. I needn't have worried though, she was very excited about getting her brown signs noticed, loved the thought of more visitors happening upon them, proceeded to stick stickers all over us and shooed us out to discover the vast slightly randomness that is Bletchley Park for ourselves.