Memory low : delete some data

This is the error message that appears in my N73 mobile once in few days. There will be no space for new messages and no messages can be sent at this time. But the good news this error text will not be present in the mobile for more than a day and the next day every thing is all right. Its just like a viral fever i think, comes and goes with no treatment required for recovery. Here are some tips which can help you to come out of "Memory low delete some data" virus in your mobile phone especially nokia
Do's
-i think this is the best one
the reason for this is lifeblog, u can find that the file lifeblog.db will be the file that has increased its file size and causes this error, just go to lifeblog-settings-item types-and uncheck all the files here, after some time the memory will be normal
-delete some files in your phone memory so that you keep receiving the new messages(your phone memory will be very less at that time)
-try to close all the applications by pressing menu button for some time
-switch off the mobile and take the battery out and then insert it back and switch on
-after you regain the memory in your phone put some files in it like a song or other files so that you can delete in the emergency times
-be patient this situation comes because of some error in memory console of your mobile and it will be solved without our interference
Dont's
-Dont get panic and step into Nokia Care for firmware update this will never help the cause
-Dont try to get any new anti virus as this will never solve

(suggestions are welcomed)