> when the checkout terminal asks you to round up your change for a donation to help kids, and the cashier is looking at you, nobody wants to feel like the jerk that says no.

I find it helps to remember that the corporation is not in it to help needy children, but to launder your extra pennies into being able to claim charitable donations on behalf of the company and consequently reduce their tax bill.

When you look at it as corporate greed, feeling like a jerk disappears.