Bought  a  Raspberry Pi B+ recently. It's always on and always online.
  Currently, it only runs an IRC client and a simple TODO tool.

  At first, I didn't care much and installed  raspbian.  I'm  a  spoiled
  child, though, so it didn't take long until I switched to the ARM port
  of Arch Linux. Much better and a lot faster.

  As IRC client, I use WeeChat, but I don't think  I'll  keep  it.  It's
  rather slow on a Pi.

  The TODO tool is just a small script around ed(1):

    1   #!/bin/bash
    2   d=~/sgratch
    3   [[ -d "$d" ]] || mkdir "$d"
    4   cd "$d"
    5   [[ -d .git ]] || git init
    6   ${EDITOR:-ed} sgratch
    7   git add sgratch
    8   git commit -m 'sgratching'

  That  is,  it opens a file in ed and automatically commits that into a
  git repo upon exit. It's a lot faster than using vi -- and  more  fun.
  :-)