I dont know what to spend my lingots on
Save them for future streak freezes and such and give them to helpful comments, inspiring posts, etc. :)
Look through the shop and try to find something that will help you with your learning. If not, then just save them for future use.
Go to the store and see if you like anything. If not just save them for the future. Or give them away or give them away to inspiring comments.
Or use as a prize to host an Xp contest....
go to the shop>:(