itunes_safari.rb

require 'appscript'
require 'open-uri'
require 'json'
require 'youtube_g'
include Appscript

itunes = app('iTunes')
safari = app('Safari')
# Get info on track
current_track = "#{itunes.current_track.name.get}"
current_track << " - #{itunes.current_track.artist.get}"
# Get the first video on youTube for that track
client = YouTubeG::Client.new
url = client.videos_by(:query => current_track, 
                       :page => 1, 
                       :per_page => 1).videos.first.player_url
# Open the url in safari
safari.activate
safari.document.URL.set(url)
# Add the url to the comment section of the track
itunes.pause
itunes.current_track.comment.set(url)

textedit.rb

require 'appscript'
include Appscript

textedit = app('TextEdit')
textedit.activate
doc = textedit.make( :new => :document )
doc.text.set("Ruby is awesome!\n")
doc.text.size.set(24)
doc.text.color.set('red')
doc.text.font.set('Monaco')

doc.save :in => '/Users/bundu/euruko.rtf'

things_tadalist.rb

require 'things'
require 'open-uri'
require 'hpricot'

Things::App.activate
url = 'http://YOURNAME.tadalist.com/lists/ID.rss?token=TOKEN'
xml = open(url).read
Hpricot(xml).search("item/title").collect do |item| 
  title = item.inner_html.sub(/([^:]+): /, '')
  case $1
    when 'Added'
      Things::Todo.create(:name => title) unless Things::Todo.find(title)
    when 'Completed'
      if found = Things::Todo.find(title) then found.complete! end
  end
end