All the other kids are doing it...

Well, we will just have to see who has more bag space, mmhmm!

First bag (Backback, 16 slots):

• Charged Crystal Focus x? - As many as I can maintain, they are nice as a forth health stone.
• Netherweave Bandages x20 - You never have an excuse to be at 25% health for an extended amount of time
• Drums of Battle
• Drums of War
• Drums of Restoration
• Superior Mana Oil x5 charges
• Elixir of Major Agility x20
  
• Elixir of Major Mageblood x20
• Fel Mana Potion x5
• Riding crop
  

Second bag (22-slots):

• Fel Mana Potion x15
  
• Scroll of Agility V x20 - mmm, agility
  
• Healing Potion Injector x20
• Mana Potion Injector x20 - though, this is mainly for farming/PvP
• Grilled Mudfish x20 - mmm, agility
  
• Feltail Delight x20 - Pet food, though Aeris and Sephiroth, my windserpents, are just as happy to eat mage food
• Purified Draenic Water x20 - more use for farming
• Hot Buttered Trout - just incase I miss the mage table :P

Third bag (22-slots):

• Two tiny crocolisks, a tree frog, and w/e fourth pet of the week
• Apexis shards
• Netherwing Crystals
• Nethermine Flayer Hide
• Oshu'gun Crystal Powder Sample

Forth bag (22-slots):

• Motes of fire, water, air, mana, life, earth
• Zulian Slicer - I am rather embittered that Finkle's Skinner never dropped for me. One day I just go farm UBRS over and over for it...
• Fishing pole, hat, lures x20
• Heavy Knothide leather, Knothide leather, and Knothide leather scraps - less than one stack each
  
• Medallion of the Horde - for boss fights that require a stun, etc. to be removed
• Medallion of Karabor - this is carried out of habit more than anything, though it is nice for some fights where a little Shadow Resistance helps
• Onyx Netherdrake
• Black War Kodo - though this switches to Black War Raptor, or a Frost Wolf depending on mood
• Hearthstone
  

Because I am typically Loot Master, I have to keep bag space open for gems, Hearts of Darkness, BoE patterns, etc. I am so concious of how my bags are arranged, it could almost be called anal retentiveness. A place for everything, and everything in it's place!