The crafter and the two alts that sell 3 classes each have 3 packs of endless pockets and one frostweave bag. That can handle 3 classes of glyphs each. The third alt that sells one class and all the scrolls, certificates of ownership and off hands has 2 packs of endless pockets and 2 frostweave bags – that can take care of one class of glyphs, the scrolls and certificates of ownership, and all the offhands.
Guild bank – i keep this with my crafter, easier to get hold of inks et al, avoids mailing. Holds all the inks i need plus herbs i store up during the week plus spare parchments (saves going to the vendor all the time).
Main bank – my crafters main bank holds the bags that a set of ink ready to craft a weeks supply of glyphs, and components for the off-hands.
I don’t have a bank toon – the gold is kept on each toon as it builds up. The crafter (who also buys the herbs) is self financing.
I don’t use alt banks in the inscription process other than to store surplus ink. It is a question of adding in a trip from the mailbox to the bank to swap bags vs logging onto another alt. Perhaps saves time, perhaps not. But that’s just me.
I watch my competitors by adding them to my Friends list.
for this and other ideas on the glyph market please follow the link to the free Croda's Inscription Gold Guide