My retreat was shortened to two weeks for personal reasons, I just finished the last day yesterday. I probably would have made an excuse and stopped after the first two weeks anyways, as having to relocate to a different forest after 14 days would have taken a long time to get re-situated. I had decided to get away from roads and hike out a little ways to immerse myself in the wilderness.
Because of it raining sometimes a couple days at a time, along with small animals harassing my tent while I tried to sleep during the second week, having a set schedule seemed impossible. I have to admit that during a period of intense raining lasting two days I succumbed to desire and drove down the mountain to acquire an internet connection and get myself a meal at a restaurant.
I checked out the forums during that brief time on the internet, and was instantly drawn to the Thanissaro Bhikkhu ; Right Mindfulness thread. Having had my own issues with some of his previous teachings, my mind felt intensely strained and constricted while reading the thread after having just been in a very good place. My own aversion to the subject became fascinating to me, and my solution to studying the process further was to download the book to my e-reader and study it during my retreat. I'll go ahead and post directly in that corresponding thread my thoughts on the book so as not to derail this thread.
All in all I was extremely over-prepared for the trip, and the only difficulties came from the rain, night time critters, and my own discipline. I tried my best to switch constantly between walking, sitting, and studying. I probably averaged about 45 minutes during my sits, never going past an hour except for meditation before bed while waiting to get sleepy. Interestingly there were about a half dozen times where I would feel like I needed a break and would tell myself to "stop meditating". This would be followed by some of the most joyful and insightful moments of the retreat, though it didn't take very long before I would realize it was time to start putting forth some effort again so as not to sacrifice the momentum that was there.
Other than that I'll answer any questions anyone might have if they have ever considered doing something similar. I can't comment on the effectiveness of the retreat, as I don't have much to compare it to besides a few times living at non-retreat monasteries in the states and regular personal practice. I still feel like I'm on retreat, so that's nice
. I will say that the most important thing to consider (and I had realized this before even starting the retreat) is that while being secluded from everyone and everything, if you do not make an extra effort to be friendly to yourself you will not be a happy camper