What exactly should I buy?

Hello,

I'm fairly new to this game and when I started I read a few guides on how to make gold by skinning, I've made around 5k Gold and I have no idea what I should be buying with it.

People made out that getting loads of gold was very important but I'm struggling to get it spent :).

Anyone have any advice on what I can purchase?

I'm a level 30 NE Rogue.

Thanks