Auto complete for C/C++ macros.
sr-speedbar, still has some problems.
auto-complete for scheme(via geiser)
Browse common lisp hyperspec document...
auto-complete for elisp
Helm find recent file, buffers.
Helm select mutliple files for later ...
helm-M-x, "M-x" with better completion.
View man page within Emacs with helm ...
Auto-complete for python.
Org-mode, org-babel, with auto-comple...
Auto-complete for common lisp
Auto-complete for clojure with nrepl
Auto-complete for C++ Qt
Auctex mode with outline-minor-mode
Some screenshots for oh-my-emacs(https://github.com/xiaohanyu/oh-my-emacs)