I find Sticky Notes really useful. Especially if I'm customising a theme.
For those that have found it here are some keyboard short cuts
Ctrl + Shift + L (once): Bulleted list
Ctrl + Shift + L (twice): Numbered list
Ctrl + Shift + >: Increase text size
Ctrl + Shift + <: Decrease text size
Ctrl + U: Underline
Ctrl + T: Strikethrough
If you have not yet found it have a look in the start menu.