If you've got this far, you're doing a great job. Look at those before photos and see where you've been. And don't forget there will be that horrible stage where things look worse than they did when you started and the more you do, the more you seem to have left.
I put everything in boxes. Rememeber I am running a rearguard action against things that fly crawl and chew! But I went by the same motto as you. It's usually the gadgets that can't be catagorized. So I have a rack I got from a closing-down card shop and I have put them all into smaller stacking boxes on those shelves. The 'really' last little bits get put in one box of 'last little bits' and then I know where they are. Some things got stuffed in boxes-for-that-craft when I ran out of ideas; so lace prickers went in with lace thread and the shade-cards for Appleton's wools went with the wools.
I still have some boxes like the ribbons and buttons ones and the scraps-that-need-to-be-decided-on that still need internal sorting, but I have left those for cosy nights beside the fire in the winter, where I can get down on the floor and decide on the criteria for sorting them. The ribbons are mostly wound on cards and lined up, but the buttons are all in a heap. They may stay that way. I quite like the multicoloured shale of them.
What are the 'bits' of which you speak? Odd bits of elastic and one inch pieces of velcro or half used needles and that odd holepunch for leather?
I've put all the velcro together in a box of 'fastenings' that include hooks, eyes, press-studs, fur-bars, frogs and clasps. Then I ended up with lots more velcro that I thought I could possibly own (never enough of the right side though :( ) so it got presented with its own box. I have used these Useful Boxes that come in loads of sizes. I got them on sale or return from Staples (DH calls Staples my Drug-of- Choice! and asks me if I am going to 'use') and the investment was well worth it. They all stack together, and some go inside each other. All good stuff.
Holepunches and prodders and wheels and stuff all went in trays in a box. I even have a box of boxes and tins and cartridge cases in-case- they-come-in-handy. =D Couldn't throw those away, could I?
Lastly, the UFOs are sorted into projects with the fabric and pattern (IF I think I will get around to them) and sorted away into their constituent parts if I honestly don't. THAT was SO liberating! Some even have got finished now. Others are moving up the list.
You can do it, but Rome wasn't built in a day. And beware the place I got to... where everything was so tidy I didn't dare touch anything! The room was sterile for about a fortnight until I made myself go in and DO something. It's friendly now, but not yet cosy. That will come, but productivity is improving.
Take care, Nel (Gadget Queen)