When you’ve got deals with big league teams, everything gets saved, much gets signed and you put it all in a 35,000 square-foot facility.

Steiner Sports has bulked up its storage capacity.

The New York-based memorabilia giant has partnerships with the Yankees, Mets, Red Sox, Notre Dame and other big time sports entities to sell game-used items and the company now fills orders from a new warehouse.

From signed, game-worn jerseys to stadium signs and seats, the place is jammed full of items.

While the memorabilia they corral is a big part of the business, Steiner’s autograph partnerships mean that superstars are often stopping by to sign whatever is put in front of them.

MLB.com gives us a look inside the big business of current day sports memorabilia with a look inside that giant holding tank, complete with a visit from Nick Swisher.