There are two types of personal reserves available for gold: Additional Experience per battle (large) and Additional Crew Experience per battle (large).
You can change the exterior of your vehicle by purchasing paints, main styles and effects. They are available for Tier VI, VIII, IX and X researchable vehicles, as well as for Tier VI and VIII Premium vehicles.
You can change the name, surname, and portrait of any crew member.
You can change your Wargaming.net account name. A username change is available once every 14 days.
Camouflage applied to the hull provides a concealment bonus to the vehicle.
You can also apply one or several inscriptions and emblems to a vehicle depending on its type.
You can recruit more crew members by adding 16 bunks to your Barracks multiple times.
Crew members can be trained to 100% in their major qualification. Tank Academy allows you to retrain them for a new vehicle and save the earned crew experience.
Gold allows you to demount complex equipment and mount it on any other vehicle. Removable equipment can be demounted for free.
You can spend gold to enlarge your Garage by purchasing new slots.
You can convert gold to credits in order to purchase a researched vehicle quicker.