I just use BCW double row cardboard boxes. Each box can hold 130 PSA cards. SGC is a bit thicker so maybe 120 per box and BVG I'm guessing 100 per box. I use these boxes because they are simple, cheap, and don't weigh hardly anything. A full box is pretty heavy so I don't want to add even more weight using a metal or wooden box. Maybe once I'm done collecting, I'll figure out something better but until then, it's just simpler moving these boxes around and keeping cards in order.
Here's a random ebay link for these boxes. Even my local baseball card shop keeps these in stock which is nice and saves on shipping charges.
https://www.ebay.com/itm/BCW-Graded-...oAAOSwby1emMs0
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Ron - Uncle Nacki
T206 Master Monster Front/Back Set Collector - www.youtube.com/unclenacki
T206 Basic "The Monster" Set
514/524
T206 Advanced "Master Monster" Front/Back Set
??
??/5258
COMPLETE T206 BACK SUBSETS
Old Mill Southern Leagues - Black Ink
48/48
Sweet Caporal 350-460 Factory 30 Full Color "No Prints"
28/28
NEAR COMPLETE T206 BACK SUBSETS
Polar Bear
245/250
Sovereign 460
50/52
Sweet Caporal 150 Factory 649 Overprint
31/34
Piedmont 350 "Elite 11"
9/11