Quote Originally Posted by 'accretion',index.php?page=Thread&postID=105228#po st105228
I have both a dedicated guild bank mule (4 tabs) and several other mules as well. I'd been using mules alone, but finally went to a guild bank for convenience. No regrets at all, in fact, I should probably consolidate my remaining mules into 2-3 separate guild banks because it's a lot easier than logging on individual toons.
^ This

I have one mule character on each account, all guilded with my team. One tab for generic tradegood stuff (elemental/essence/primal, mojo, spider silks, gems, etc,) one with 2 stacks of nearly every generic tradegood item (2 stacks of each herb, 2 of each enchanting material, 2 of each mining bar, just not cloth,) one for 'quest' item storage (STV pages, bijou/coins, scryer/aldor items, twilight texts, the five AD turnin items, etc,) and one tab for random gear (right now I have a bunch of fishing hooks, various BoE vanity items and pets, and 16slot bags for alts.)

Each mule is where I stockpile everything. One I mail everything I want to AH to, one for cloth, one for herbs, one for mining, one for leather. I have a 70 mage that is essentially my enchanting mat mule now. Most of the mules have all 16-slot bags and every bank slot purchased, I think the mining and leather mules are still missing 2. I try to only keep a few stacks of each low level item (like 5 stacks of light/medium/heavy/thick/rugged leather) and the rest of the space goes to the BC versions. The surplus go to mule #1 for AH purposes .

It all comes down to what you need it for. The guild bank is awesome for stuff you want to use. If you're skilling up tradegoods it's nice to have that guild bank to grab a gem, spider silk, heart of fire, or whatever off item you need. That way you don't have to log on a mule and be in the same place to trade the item. Mules are more for long-term storage to me.