Check out these pages for guided mindfulness activities all freely available. Most of the activities you should be able to download onto a phone or music player to use anytime you like (please don’t use them while driving or operating heavy machinery :P).
Smiling Mind – exercises for your phone / ipod – will need a constant internet connection.
Dr Richard Chambers – has a great set of free mindful practices. Dr Chambers was heavily involved with the making of the Smiling Mind app.
Wheel of Awareness exercises by Dr Dan Siegel.
Guided Meditations from the University of California.
The UC San Diego Center for Mindfulness has prepared a number of practices.
Mindfulness Meditation Exercises from the University of Sydney.
Mindfulness and Pain from painHealth (Western Australia).