I'd be interested to know whether the markdown style shortcuts in the current version of Evernote are widely known and whether there are others I'm unaware of?
When I found out about these they were a real productivity boost for capture and formatting notes.
These all work as the first characters on a line...
# (hash+space): Large Heading
## (hash+hash+space): Medium Heading
### (hash+hash+space): Small Heading
* (asterisk+space): bullet list
1. (1+fullstop/period+space): numbered list
[] (open square brackets+close square brackets+space): checlist
--- (dash+dash+dash+space): divider
Combine these with bold, italic, underline - CTRL-B,I,U or COMMAND-B,I,U and I can create great looking notes incredibly quickly.
I've attached a screenshot which might better illustrate the shortcuts.
Let me know if there are others I've missed!