This is a very simple calculator to use to work out which week your business/project/venture is currently in, so you can put the right number into your weeknote blog post.
If you aren't sure what a "weeknote" is, then see http://weeknotes.com.
This script is provided as-is, but if anyone spots any problems or wants to get in touch then feel free to drop me an email.
The code used to calculate this is as follows:
#!/usr/bin/ruby require 'date' registration_date = Date.civil(2005,9,30) this_week = Date.today # Get the start of the week for each of those dates if registration_date.wday == 0 # wday of 0 is Sunday, and we want our weeks to start on Monday registration_date = registration_date - 6 else registration_date = registration_date - (registration_date.wday - 1) end if this_week.wday == 0 this_week = this_week - 6 else this_week = this_week - (this_week.wday - 1) end puts "This is week "+(((this_week - registration_date)/7)+1).to_s