Friday marks the starts of Glastonbury 2015. I have already started seeing photos on Facebook and Instragram of people arriving at the festival. As someone who attended Glastonbury last year, I expected to feel envy that I’m not going to be there this year, but I’m actually quite relieved, as I get to sleep in a warm bed and drink tea! I’m also pleased not to be experiencing the long drop toilets (try using them in the dark) and trying to dodge hypothermia. Plus I have done my fair share of muddy festivals already this year, with Download two weeks ago and the torrential rain splattered British Summer Time last…