I don't know if it has been noted, but Depeche Mode is booked tight in a European tour in May with with a show in Slovakia on May 25 and back to back shows at O2 May 28 & 29. They are likely out. In about 10 days Primavera Barcelona 2013 will be released (May 22 - 26) but they have confirmed Blur will be there.
As well, Whitesnake is booked with Journey all through May in the UK. (Sorry, I know you were all interested in that Journey - Whitesnake - Kiss magic trifecta.)
On the upside KISS has the month open on their bookings.
So I think it is safe to say Blur and Depeche Mode are out, but we still might be able to have the Kiss Army invade George, though without Whitesnake and Journey.
I also like to use the hinged lid storage boxes like the Sterilite 19148006 and mark them with a large maker with words like: FOOD; COOKING; PARTY SUPPLIES I am retentive enough that I tape a list on each box of what is in the box, like: 3x cans refried beans; 3x pouches tuna; can opener; box of instant hot cocoa; graham crackers…. Of course I use this system year round and have it set up so I can kick off early on a Friday and do not have to get ready for camping.
Pack lots of Clif Bars (or your favorite equivalent.) Crashing from starvation at 3:00 PM sucks.
For me my main meal each day was in the festival, look for something reasonable like a veggie burrito with brown rice so you don't hate yourself 2 hours later with that Yucky-Soba hits your colon. The only real meal I cooked was breakfast. I would have a nice breakfast, then a light snack at night when I got back (something EASY to fix).