Lots of articles and shows about this, as this is the time of year for it...
I put seasonal clothes in a dresser in one of the kids' old rooms...I saw on Ikea.com some covered boxes with a place for labels for things like scarves, hats, gloves, etc.
I need to go through old photos & start pitching. How many photos of sunsets and trees do I need, anyway?
I use totes, too...I label them...we have lots of totes with the kids' old toys in our crawl space. Waiting for grandkids, I guess...