What "layout" and/or design of page protectors do you use?

I use 12x12 D-Ring albums, and inside my album, I use a variety of styles of page protectors. I use 12x12, 8.4x11, 6x12, 8.5x11 trading card slots, and 12x12 (6 - 4x6 openings), and I'm looking to add some "Project Life" Like page protectors as well.

I use Pioneer 12x12 D-ring albums mostly. I have no idea what brand of page protectors I use (WRMK sounds right). I have a bunch of post bound albums I should use and a few strap hinge left from back in the day.

I tend to keep it simple with the page protectors.... 12x12 mostly.

Mine are post bound with 12 x 12 page protectors.
Once these are filled up, I am switching to d-ring albums, and the page protectors form WRMK.

I use top loading post bound albums so whatever fits those albums is whatever I use.

My first couple of albums were post bound and the remainder are D ring. I'm thinking at some point I would like to reorganize my layouts. If I do, I'll get post bound albums because I'm having issues with my D ring albums leaning and some of the layouts developing a curve to them. The page protectors are all 12x12 but I have with 4x6 pockets for extra photos that I haven't used yet.

I have a few post bound albums from when I was first scrapbooking. Then I switched to American Crafts D-ring. Love them.

I use mostly 12x12, but have also switched it up occasionally with some of the 12x12 that have 4x6 openings in a couple different configurations. I also have gotten artsy and did a couple of 6x12 pages and have those in 6x12 protectors too.

I only use 12x12 D-ring albums and I buy what ever sleeves that are on sale.