All XP Spends and Sheet Modifications are done using our web-based digital character sheet system, Hallergames.
To access, give the ST Staff an email you want to use, and we will create a login for you. Then you can go to hallergames.com
and log in to view your sheet, so how much XP you have, and request to buy new things on your sheet just by clicking them.
Here is a Player "How To" Guilde for Hallergames:
Basic XP Spend Costs:
There are other things that XP can be spent on, but they are too varied to put on the list.