Once logged into your account, you can easily access the list of jobs you have already applied to, as well as the drafts you have yet to submit.
From the job search, access the "Applications" section of your account. Here you'll find:
Incomplete Applications: the list of your draft applications - you can delete or review them before applying
Submitted Applications: the list of the roles you have successfully applied to
Shortlisted Applications: the list of the roles you have been shortlisted for