As I can't do much around the house until I get the all clear from the doctor, I decided to sort the CDs and DVDs.  The CDs were mostly done, in alpha order by composer, so that was mainly inserting new ones and moving them along the shelves.  The DVDs another matter.  There is about 550 of them and I still have about 150 videos. Sorting has always been a problem.  My main way is by date.....of the subject matter.  Like "I Claudius" comes before "Braveheart" before "the Last of the Mohicans" etc.  That works perfectly well for about a third.  Its sorting the rest which is a pain as some films sort of defy rational categorisation. Sometimes I wish I wasn't so acquisitive.