I'll say it like a broken record, but literally sitting on your ass and doing nothing and watching TV (or doing one of the million of things that you're behind on) is most effective. Think of it as a modern day sit in protest.

If no one goes to the pub, the grocery store, the petrol station, buys anything really. And not go into work. Think of it as the day the world stood still. This is the kind of protesting that gets attention. I mean when the railway workers didn't go to work, the president uses an executive order to force them back to work is enough of an illustration. Imagine if every railway worker and every truck driver got the lettuce thing and had to call out.