To quickly find an item in the Inventory or Store, enter its name in the search field. The search field is located at the bottom of the Store and Inventory windows.
Also, you can quickly find items that are on sale. To do this, apply a filter by checking the "Special Offer" checkbox, which is located at the bottom of the Store window.
The discount items are indicated by a ribbon with the sale amount.
You can also find all event items in the Event tab.