Frame Content Layout Templates
There are some compositions of frame contents (which should be described in section 8.2.8 in the user guide, btw.) that recur on a regular basis, for example pro/con lists ('comparison') or the profile of some person with mini-bio and headshot or a captioned picture.
Beamer's capabilities for frame headers, footers and sidebars easily outperform Powerpoint and the like, but I wish it also had content templates, cf. http://office.microsoft.com/en-us/powerpoint-help/HA010338412.aspx