Other people's teens are inevitably more lovely than one's own, though. Kevin & Perry and all that.
Inter-railing - eek, Beachy, I'd be nervous too. Having said that, I went off for four weeks straight out of boarding school, and those were of course the pre-mobile/pre-internet days when all DM could rely on as assurance that I was still alive was the weekly crackly phone-box call and the odd postcard.
Lovely weather, though, eh? I was planning to wear my most breezy summer dress to work (a ten-year-old Tesco black and white wrap number) but changed my mind at the last minute; good thing I did, as we've had a visitor in all day wearing the exact same dress. 
DH and I will take Friday off from work and Do Something. What, I don't know. I might start a thread.....