--- /dev/null
+
+
+## some notes for efficiency
+
+* Effectiveness is All about Managing Your Time, Energy, and Attention
+ <http://www.productiveflourishing.com/effectiveness-is-all-about-managing-your-time-energy-and-attention/>
+
+* Manage Your Energy, Not your time
+<https://hbr.org/2007/10/manage-your-energy-not-your-time>
+
+* 尽量脚本话工作,不要重复手动操作,vim, emacs, perl
+
+
+* emacs - dired mode
+ * map backspace to up directory
+