I can't throw out photos. It just feels wrong to me, LOL. I have a photo album for all my old wall photos, class photos, some enlargements from my childhood, etc. I think it's called a magnetic album? It's the kind that's a little larger than 8x10, and the clear page protectors peel back so you can put any combination of photos on the page, no specific pockets for each size. (There's an older version of these from our childhood that weren't archival and ruined photos, but the newer ones are fine. I'm paranoid enough to make sure that the ones I buy say that they're archival or photo safe, but I think all of them are now whether or not they say it.)
Another thing I've done sometimes is to mount the photos on 12x12 cardstock and then put them into the appropriate year's scrapbook. I hope you can find a solution that works for you!