Quote Originally Posted by Sirmarki View Post
Off the top of my head, you can use them by pressing "F1" and then enter key, and then scrolling down to "Items".
Correct.
Using [Ctrl]+I brings up the Items you are carrying on you at that time, not items in your mog house.
Using [F1] is how you target yourself in game ([F2 thru 6] will target the other 5 party members in your party, if any, listed by how they show in your party list menu below your name/hp/mp on the right),
and then hitting [Enter] will bring up the "Usable item/ability Menu" THAT menu tells you what items/ja are usable by you at that moment.