From Jfish Wiki
This is a list of little things that might not be entirely clear.
- Control-clicking a usable item will use it. This is also a way to bypass the verification popup when unboxing chests.
- Shift-clicking any item will instantly direct-sell it
- Getting a JasX premium account will let you complete 2 extra quests every day
- Quests, store, storefronts and the marketplace are the best places to get crafting supplies