I'm starting to feel like it's time to move house, but after 13 years in one spot I don't think I could face packing...I'm a hoarder.

But I do know of someone who recently digitalised all their family photos and now keeps them on computer CDs - what a space saver! especially if you are moving. If you have a scanner you could also scan documents and letters to keep the memories and discard the papers...and you can have backup copies of the CDs in a safe place in case of bushfire etc. Just a thought - depends how much time is available...