So, did you work on your Big Thing? Maybe less than you expected to do? Don't worry, it will get done if you keep chipping away at it, 15 minutes at a time.
Let's try something else to conquer that mountain of clutter. Throw away one thing a day. Now, I don't mean something that needs to be sorted and organized before you can throw anything away. That would be your next Big Thing, after you've finished your first Big Thing. I'm talking about that old box of crackers or cereal, that plastic container in the back of the fridge, that broken something in the corner. Something that you can toss in a minute or two, without thinking about it, something that doesn't need any preliminary action before discarding. If you can donate it, put it with the other things to be donated (you know you have a pile for that!). If you do that several times a week, you will be surprised what a difference it will make in your home. As the clutter clears your mind will be more relaxed and your home will feel more like a home.
So for right now, we are working on a big project for 15 minutes a day, and throwing away something we don't need or want. Let me know how it goes!