     ("Agenda"    . db/org-agenda)
     ("Init File" . db/find-user-init-file)
     ("EMMS"      . emms)
-    ("Gnus"      . (lambda ()
-                     (interactive)
-                     (find-file gnus-init-file)))
     ("Shell"     . shell)
     ("EShell"    . eshell)
     ("scratch"   . db/scratch))

  (require 'helm-files)
  (require 'helm-bookmark)
  (helm :sources `(db/helm-source-frequently-used-features
                   db/helm-source-frequently-visited-locations
                   ,(when (and (= arg 4)
                               (file-directory-p db/important-documents-path))
                      'db/helm-source-important-documents)
                   ,(when (package-installed-p 'helm-eww)
                      (require 'helm-eww)
                      (helm-eww-bookmarks-build-source))
                   helm-source-bookmarks
                   helm-source-bookmark-set)))


    (action . (("Open" . funcall)))
    (filtered-candidate-transformer . helm-adaptive-sort))
  "Helm source for `db/helm-frequently-used-features’.")

(defvar db/helm-source-frequently-visited-locations
  '((name . "Locations")
