Startup command can be very useful to increase productivity. They have already described startup command on this page - http://www.brainasoft.com/braina/startup-command.html (http://www.brainasoft.com/braina/startup-command.html) .
First thing I do when I open my computer is check emails and Facebook notifications. Startup command feature has helped me to automate this routine task. I have specified "open http://www.gmail.com and open facebook" as my startup command and Gmail site and Facebook automatically gets opened when I start my computer.
PS. You can also specify "start listening" as startup command to start speech recognition on startup but I have removed it lately as sometimes it gets annoying as it opens up speech recognition window everytime when the PC starts.
@jacob Thanks for sharing this tip. Just want to add that any command of Braina can be specified as a startup command. For example, "show weather condition" or "what is the time?"