Here's a great little tip I found out recently when playing the game ... to speak in world chat 1 "trumpet". While someone like me who doesn't use chat that much has more than enough, some people are more social or have a lot of questions so they run the risk of running out of trumpets.
What can you do?
Easy! Just use FACTION chat instead of world chat. It doesn't cost you anything to speak in faction chat and everyone in the entire game (on your server) who is in your faction (Dark or Light) can see your question and hopefully help you with a good answer.