Related to this question, The blinds project has gone pretty smooth up until this point. It seems that some walls have plaster or masonry behind them. Probably not a big deal, but I've snapped a couple of quality drill bits in the process.
Thus, I ask: What should I do to fasten the rest of these to the wall? I have seen some suggestions online about using molly anchors, but I'm not sure if that's the right approach, or even which molly anchor is appropriate.