A "Someday" category to record task ideas that I haven't yet committed to

Add a "Someday" category where I can write down tasks I plan to complete at some point, but I'm not ready yet to add them to my calendar, because I don't know when I'll be prepared to work on them. Once I feel that I'm ready to take on these tasks, then I can add them to my calendar and set reminders for them. This is important to me, because I often find myself brainstorming, but I'm not willing to commit to all ideas I come up with, and sometimes I just need a little time before I'm ready to work on certain tasks. So, I request this feature because it helps to be able to brainstorm freely to save ideas of tasks I may someday commit to, but I need to keep them in a separate category until I'm ready to add them to my schedule.