I've gotten by with just three for the last 35 years, but more is always better! Oh yeah, and two or three more that I made from other blades.
A couple of lattes. A case of beer. I paid $15 to bypass carry-on ONE of my scrapers past Anchorage to Kotzebue TSA ( it was an inch longer than their 7-inch brainiac rule......) .

And a scraper will last waaaay longer than a case of beer!. Or for that matter 6 cases of beer. smile

Perspective, man - perspective.

Last edited by las; 11/14/18.
The only true cost of having a dog is its death.