Will I ever get the hang of this?

Have had a problem with posting and I was so sure that I had finally cracked it.  Wasn't able to sign into my dashboard.  Some cookie had prevented my husband signing out thereby denying me access.  After much deliberation I contacted my long suffering brother who is the only one I know with the 'know how'.
Turns out the cure was something my equally long suffering husband had suggested days before. C'est la vie....