Promissed someone so I'm posting - Download zest.xlsx from Sendspace.com - send big files the easy way
1st column - names of items, I don't run with clothes - they require insane ammount of space, some rare (for better transmog with MoP's launch should be nice demand for it)
2nd column - ammount, match your needs for it, I mostly take 500-1000 of each =)
3rd column - name / short form of your char which contains it
Tips:
1. use professions' bags in normal banks (give more space if you're using guildbanks)
2. some mats are not here - why - because atm i'm using full 5 characters for it which means: 5 normal banks + 5 x 7 special professions' bags + 5 x 6 tabbed guildbanks and still have no much space, propably will need 1 more bank
3. use mailbox as infinite bank, for this example I'm using it for pets etc, send them (gather and send so you only will need click "resend" option later) like few days before MoP's launch
4. I used most of this (added few things like elementals ("other" tabs)) in middle between 4.2 and 4.3 and it exploded with profit (around 1kk and more for around 2-3 times less banking)
5. Most of them are for : lvling professions, grab transmog gear crafted (prolly i'd suggest you to make like i did char with most of transmog patterns)
6. Grab patterns for MoP for crafting pets like for this example mechanic squirrel - this pattern I think after remake DMF has 1% drop rate from random bosses like Nefarian etc... so if You invested let's say 50k in old dmf and grab 5-10 of those then grats, you will get refund of those 50k on 2-3 of those patterns
7. save currencies - like those from tournament (40 per pet and i think you can have 999) - you wont need to spend bags' place for it
8. Glyphs - I cannot understand why people are idiots but nvm - grab (if you're scribe) glyphs now, use milling on low lvl herbs not only tradeable in dala/etc herbs because you can get now low lvl inks for less than 3g per 3 and with MoP's launch you can imagine glyphs' prices - my suggest 20-40 of each "worthable" (plenty of topics were in web)
9. About glyphs - [Inscription] New glyphs available on 5.0.4 launch? (there was also topic for glyph's changes)
10. When MoP will start don't put like 10 mats of the same lvl at ah (same lvl = sun citrine/chalcedony/etc) beacuse it will just be a waste
11. Inflation in MoP is your friend =)
...and I think that would be for now =)