While preparing some lecture notes in Org mode to be exported using Beamer, this error message confused me today and prevented the pdf being built.
! Undefined control sequence.
\beamer@saveanother ->\let \beamer@savedif
Turns out it was generated by a heading having no content only a tag like this.
After having switched to Emacs and eventually allowing OrgMode to take over my organisation it only made sense to explore what other things I could do with Emacs.
So one idea I decided to explore was using OrgMode to update my various WordPress blogs that I keep or maintain on behalf of http://gridgiant.co.uk.
Using org2blog found online on github at https://github.com/punchagan/org2blog and the xmlrpc interface built within WordPress; it turns out to be easy to do and very powerful.