Hi, I'm quite new to Jira. What I find difficult is that I've got many projects and its hard for me to concentrate on the tasks needed to be done for the day. So ideally I would like to go trough the projects in the morning and pick tasks that i would like to work on today and all picked tasks to be in a simple todo-like list. Is this even possible in jira-core?
There are different ways in Jira that can help you identifying issues or tasks related to you based on a specific information like due date.
In your case how do you define the issues that needs to be done on that day? I guess you have some date field or may be a due date field. Simple use that information in your filter by going to the Issue Navigator. You can refer to this page which has good information on this topic.
I hope it helps.