As a new reader and planning for my first hike in a decade (in Cradle Mountain), I've been much enlightened by all the posts in here. My all important question is about keeping your bum dry, as I'm still undecided on the best way to do this for dayhiking in the wet and snow. So maybe this mystery is worth it's own thread?

What are your approaches?
My instinct was to get a long jacket so when you sit down on a comfy log or stone, you don't get soggy undies. But reading about Goretex and other materials tendency to micropuncture and diminish waterproofness, sitting on rough ground might not be so good for them? And there are very few jackets that seem long enough, anyway? I tried on a Hollyford that does go past my butt when standing, but would ride up on sitting... not sure if the MD Stratus or Melaleuca or Mont Tempest are any longer? The Oringi Grampian certainly looks long enough, if it's durable...
I guess I could go for water repellent shorts or trousers? Cut some overpants into shorts? Throw down a little seating mat? Not sit down? Live with my wet backside?
Look forward to your thoughts!
Bruce