Take a day to be mindful. Perhaps once a week by yourself, or less often but as a group.

Do one thing at a time - finish one thing before beginning another.
Attention on what you are doing, experiencing it fully.
Observe silence.
Move slowly.
Be equanimous, you don't have to do anything.
No worries.

Some specific possibilities:

fasting (and/or eating mindfully)
meditation
long walk
foot bath
inhalation - ginger, eucalyptus, etc.
sit quietly with a friend
listen to inspiring chanting/music (eg kirtan)
sing inspiring chanting/music (eg kirtan)
long hot bath
writing - poetry, stream of consciousness…
self-empathy
contemplation - presence with an idea (e.g. freedom from domination thinking, not thinking about the future), and with whatever comes up from that (other ideas, strategies, memories, images of future), coming back periodically to the original idea
nap
bodywork
breath work
shave, other grooming
stretching
laundry, other cleaning

Preparation:

Tell friends/colleagues
Create playlist
print this, lyrics

Things to not do:

Touch a computer
Watch TV (jumpy mind meditation :-)
Meet/phone w others (unless in support of your mindfulness)

See http://www.av-ev.de/design/AchtsamkeitsTage.html (Eng link?)

I tried it on my own a few times, and generally wasn't as mindful as i was hoping, but often got a good Day Off. Attended a group one held by Mindfulness and Understanding in Freiburg and am inspired to give it a serious go here in Eugene (local & congruent - http://www.idproject.us/satsang5.html).

The Miracle of Mindfulness, Thich Nhat Hanh - http://www.booksense.com/product/info.jsp?isbn=0807012394

Simon Smaluhn also says to check out Peace is Every Step: http://www.amazon.com/gp/product/0553351397/

and The Art of Mindful Living http://www.amazon.com/gp/product/1564557987/

One of the Process Arts