Now, Eric, just use your L-Soft computer to SORT those requests
BY SIZE and STYLE, ARCHIVE the boxes in a corner.
WHILE MORE BOXES-IN-CORNER,...  READ one box --random access--.
DO FILL-ORDERS until BOX-EMPTY or SIZE-STYLE-ORDERS-SATISFIED;
SEARCH down the sorted list for that size/style; CUT/PASTE Mailing
Label; etc....; ENDUNTIL; ENDWHILE.
 
That way, you use near-line storage instead of scarce T-RAM (Tabletop
RAM).
Peter
 
(I know the code is incomplete, but if you'll just send me a XXXL shirt,
I won't tell anyone how you executed it.)