Outlook Web App 2013 Layout tweaks

If your accessing Exchange 2013 or Office 365 OWA on a portable/touch device you can use the following URL tweak to change the layout.

Wide Format for Tablets (?layout=twide)
https://mail.contoso.com/owa/?layout=twide

Narrow Format for Phones(?layout=tnarrow)
https://mail.contoso.com/owa/?layout=tnarrow

Light Format (?layout=light)
https://mail.contoso.com/owa/?layout=light

Normal Format for Phones(?layout=normal)
https://mail.contoso.com/owa/?layout=normal

More information can be found here;