Final Draft - Use your creative energy to focus on the content; let Final Draft take care of the style.
fwrdto.me - Send web pages to your email inbox in just one click
Celtx - Celtx is a scriptwriting software platform with applications in a wide range of mediums but that specializes in helping screenwriters.
Jot - The no-fuss way to take notes
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Please Remind Me - A simple way to create reminders for when you need it.