@NefarioCall

I agree, It is easy to make Gil and don't know where to spend it.

Here is what I noticed people spend Gil on:
1- Buying clears.
2- Buying rare mounts and minions.
3- Buying crafted sets, food and potions for endgame.
4- Sell to Gil sellers.
5- Glamour.

If you are doing none of the above then Gil is useless to you