I use `mess` [1]. Short descrption: New stuff that is not filed away instantly goes into a folder "current" linked to the youngest folder in a tree (mess_root > year > week). If needed at a later time: file it accordingly, otherwise old folders are purged if disk space is low. Taking it a step further: synching everything across work and personal machines using `syncthing`.

[1] http://chneukirchen.org/blog/archive/2006/01/keeping-your-ho...