As promised, I've rummaged through the depths of my computer and unearthed my two free tutorials for making skirts with an elastic waist! You can either use them to draft your own skirt patterns, or you can simply print out the instructions and follow them each time.
I've added the two PDF files to the sidebar - you can see them on your right.
(Or scroll right down to the bottom, if you're on mobile.)
Please bear in mind that these are from 2008, when my digital camera left a lot to be desired, so some of the photographs aren't that great! At some stage I'll get around to re-doing these tutorials with better photos, but you're very welcome to download these two in the meantime.