To use it as a bank, figure out how much you want to have on-hand on your character based on how much you normally spend on repairs, food, ammo, etc. and send the rest to the bank alt. The principle here is "Out of sight, out of mind.". Money "you don't have" cannot be spent, requiring you to log out of your character, and then to log into the alt.
Items you buy from vendors can be resold on the auction house for a profit. The most common way of making gold this way is finding either vendors with limited supply items that you can only buy a set amount of a particular item from and then you have to wait a while before someone can buy more, or buy items from vendors located in locations that are far off. There are also vendors that will sell items for other currencies than gold. One more important thing to note is that you can sell very common easily available items on the AH as well. Like crafting materials from profession supply vendors that only cost a few copper or silver that can be resold on the AH for gold, and they actually have a decent sale rate.
Nov 10 How to get to the broken isles Hello I am a lvl 100 hunter and I want to go the broken isles. You see after using my character boost,finished my mission on attacking the horde and getting my new bow I wasn't able to go to the broken isles. I heard you were able to get to lvl 110 if you go but I am not able to get there. There are no portals,no ships and no mission's for me to get to. Please tell me a way to get to the broken isles for the allianceTerthelard12	Nov 10