Add to Memories after posting
Short, concise description of the idea
Add a "Add this entry to Memories after posting" checkbox to the full Update Journal form.
Full description of the idea
If the user has checked the box, then when s/he clicks Update Journal, the next page loaded will be the Add to Memories form (unless the update failed, e.g. due to a timeout).
An ordered list of benefits
An ordered list of problems/issues involved
An organized list, or a few short paragraphs detailing suggestions for implementation