I'm with you on that one.

replacing a piece of trim that's 3' 3/16" wide and minus 1/4" for blade width....

That makes my brain hurt.

now its 15cm wide, minus 4mm for the blade and my piece is 14.6cm wide, now that's math I can wrap my brain around. (man, I hope I got that right because I'm going to look real stoopid if I'm wrong)



I don't try to convert back and forth.
< 0 = damned cold
0 - 10*C = Cold (ok, I'm from Louisiana)
10 - 20*C = Cool
20 - 30*C = Warm
> 30 = hot
> 40 = damned hot.

The way I think about it was when I learned Fahrenheit I had nothing to compare it to, and when the weatherman reports tomorrows forecast its always in terms of "highs in the low 70's, low's in the mid 30's"...