Today I learned that if you are removing the speed link from your chain to let you give all the drive chain a good clean the link will fly apart unless you are careful and have a thingy to take the strain off the chain. (I now have a thingy made out of an old spoke)
I also learned that you will only be able to find one half of the link until you have, searched high and low, given up, gone to the LBS, bought a new link, fitted it, cleared up, put everything away, at which point you will find the other half under one of the maintenance stand's feet.