Today was the day I was waiting for. 

The situation:  Business objects are written, data access layer is stable, stored procedures are up-to-date and the tables are stable and contain data...then it happens -> need to get rid of business properties x, y, z  and add business properties x1, y2.  No problem, right?

Assessment of the change: 

• 3 business objects
• 1 interface
• 1 table
• 10+ stored procedures

Total time it took to make the changes: less than 5 minutes!!!!