They're getting serious about easing inventory headaches in Wrath of the Lich King. Recently we heard all about the new storage system for mounts and vanity pets (you'll learn them as spells; they will not occupy space in your bags). Shortly thereafter it was hinted that tokens (such as Badges of Justice and Battleground marks) would face a similar treatment.
An enterprising and clever beta participant by the name of Xabora has discovered what form this treatment will take, by typing /tokens and hitting return. This is reminiscent of the way Achievements were first discovered to be in WoW, which was by someone in the alpha typing /achievements. Yay slash commands! Anyway, it looks like the new system will track all your tokens, as well as your honor points and arena points, with categories for each phase of the game (Classic, BC, Wrath), PvP, Holidays, Raid, Miscellaneous, and Unused.
I'm not entirely sure why there's a category for "unused" tokens, or why Raid is separate from Classic/BC/Wrath – are they planning on putting tier tokens into this system? Will raids in Wrath award different tokens than heroics? No telling just yet, I guess. But it's nice to know that even more bag spaces will be freed, and we won't have any more issues from having left our tokens in the bank.