Coping with school holidays

Living in Scotland our school holidays are into their fifth week already ... both DH and I are really pleased with how well the boys have coped so far.  ES is generally OK with holidays and doesn't seem to mind the disruption so much but MS really struggles with the change in routine ... he's always OK for the first week but after that becomes quite hyper (his way of showing distress).

We've got a calendar which we update weekly showing what's going to be happening each day and that's really worked well with both boys but what other things to folks do? 

Our holidays are eight weeks long this year which is a VERY long time for the boys to be out of their school routine.  I love having them around all day ... I relish their company ... but it does get tiring for all of us when any of them are struggling so we try our best to make it easier for them.

GG