This is a nice experiment by M0CVO.
"For those who are new to this, this means that for the whole of the year, 2015, I shall use no more than 5W and just CW or Datamodes, no phone at all. At least one QSO a day – hence 365."
Yesterday I heard IW3IDX with SSB very strong 59+ on 40 meter. I heard him telling that he was using 100 watts. So I thought: he should hear me with 5 watts. So I called him. And yes, we made a qso. I got 55 report. Nice.