I use Ultra Pro Toploaders and sleeves for all of my cards. I have never used the small ones like these Ts
http://www.ebay.com/itm/10-ULTRA-PRO...#ht_215wt_1161
in preference of using the Ultra Pro 3 x 4, thereby lessening the different sizes I need. I also use 4 x 6, 5 x 7 and 8 x 10 ones (and some larger). And no, I don't own stock in their company
, it's just what I use for ungraded cards, such as this one below..
http://www.ebay.com/itm/600-ULTRA-PR...item1e8159f439
.