I put all the yearly sets in binders, but I do combine them instead of separating them out into a binder a piece. I usually buy the yearly Topps binder and put Series 1, 2, and Update into it.
My Yankees are all in 4 binders, but I desperately need to purchase more binders and break them up further. In addition, Derek Jeter has his own binder which I also now need to break up into two. Robinson Cano has his own binder as well. If someone is no longer a Yankee or comes to the Yankees, only their Yankee cards go in the Yankee binders. All the rest of their cards stay in the set binders.
My Yankees are all in 4 binders, but I desperately need to purchase more binders and break them up further. In addition, Derek Jeter has his own binder which I also now need to break up into two. Robinson Cano has his own binder as well. If someone is no longer a Yankee or comes to the Yankees, only their Yankee cards go in the Yankee binders. All the rest of their cards stay in the set binders.