My best streak was 28 days last summer. I was planning a 2-week road trip, so I started caching daily a week or so before the trip. Then, right before leaving home, my GPSr wasn't working properly. It would tell me where I was, but wouldn't display caches or even manually entered waypoints. Magellan sent me a new one, but it arrived the day AFTER I left on my trip. So, for the whole trip, I visited a coffee shop every second day so I could log into geocaching.com and write down the coordinates of caches I might want to look for. It's much more difficult to find GZ when the GPSr only tells you where you are and not where you're going. Eventually, I had a day where I just couldn't find anything, so I gave up.
