Dic: for good measure

• In today's programme we have a full report on today's top football matches, with some cricket and athletics thrown in for good measure.
• I swept the floor and polished the table, and then, for good measure, I cleaned the windows.
• When I bought a pound of nails, the clerk threw in a few extra nails for good measure.
• I always put a little extra salt in the soup for good measure.

1. if you do something or add something for good measure, you do it or add it in addition to something else.

2. as extra; (adding) a little more to make sure there is enough.

.... http://idioms.thefreedictionary.com/for+good+measure