For tips on:
Follow-up work after the retreat, click here
Building 'Quality of Relationship' outside of the retreat, click here
Willingness of participants to express their needs and / or approval of the retreat intent and desired outcome,
click here

Some interesting links in helping teams organize their retreat (Quality of Actions) :

Retreat Planning Guide:  http://www.managementretreats.com/html/planning_guide.html
Site Planning Guide: http://www.casperwyoming.info/pdfs/Planning_SiteSelection.pdf
Budget Planning Guide: http://www.casperwyoming.info/pdfs/PG_budget_Form.doc
Team Building Games: http://www.buildingyourteam.com/team_building_tips/
Breakout Ideas:
Open Space Technology: http://www.intentionaldevelopment.com/IntentionalDev/OpenSpace.htm
World Cafe: http://www.theworldcafe.com
Breakout Groups: http://www.nps.gov/phso/rtcatoolbox/fac_breakout.htm
Facilitation Tools:  http://www.nps.gov/phso/rtcatoolbox/fac_activelistening.htm

Scenario and visioning work:
Appreciative Inquiry: http://www.ovationnet.com/
The ten steps of visioning: http://www.soulfulliving.com/visioning.htm
The CEO's Refresher: http://www.refresher.com/!hmvisioning.html
Scenario-Visioning: http://www.co-intelligence.org/P-scenario-visioning.html
Impact of visioning on innovation: http://www.creativeadvantage.com/visioning.htm
Using visioning in corporate planning: http://cecommerce.uwex.edu/pdfs/G3752.PDF
Building Shared Visions: How to begin: Refer to the Fifth Discipline Fieldbook, pg 312-326
What do we want to create?: Refer to the Fifith Discipline Fieldbook, pg 337-339
Backing into a Vision: Refer to the Fifith Discipline Fieldbook, pg 340
The Destiny Factor:  Refer to the Fifith Discipline Fieldbook, pg 341-344

"Tickling" our mental models:
Riddles: http://www.justriddlesandmore.com/logicquestions.html
... and more riddles: http://rinkworks.com/brainfood/riddles.shtml
Death in the Desert game (scroll to pg 17): http://www.recoftc.
org/documents/Workshop_Reports/0008_FacilitationCF.pdf
Describe all visible parts of a face on a flipchart.  Almost always the raised ridge leading from under the tip
of our nose to the top of the upper lip is left out!  Try it out.  Why do we do that?  It is a part that we see
everyday, yet we quite don't quite "see it".  Also, nice to illustrate that the whole is bigger than the sum of its
parts.
Do you have retreat tip you would like to share here?  Drop me a line.