Just before I went on vacation I had an interesting issue at work.

I was trying to multiple an int by a decimal.  Nothing big, but I kept getting this error:

Operator '*' cannot be applied to operands of type 'decimal'

I was floored, what do you mean I can't multiply a decimal in .NET?  What in the world are you talking about?

So after a brief search I found the fix.

Basically I had to add an M to the decimal.  So instead of:

4 * .95

I needed:

4 * .95M

Honestly still don't understand WHY Microsoft would think this is required, but they do. 

Hope this helps you as it helped me.

HT: Asp.net