The challenge is to try to watch one spaghetti per day every day throughout November. You can incorporate some sort of theme if you’d like - last year I went only with spags which contained the names Django, Sartana, Ringo, Trinity or Sabata; a couple of years ago @Phil_H went with the truly mindbending theme of only watching Anthony Steffen movies - but a theme isn’t necessary by any means. You can watch any 30 spags you like. Or the same one spag thirty days in a row if that’s how you want to roll (that’s a theme I might try myself one year). As long as you try to watch one every day, it’s all good. And, hey, if you can’t quite make one every single day - sometimes real bloody life gets in the way of these things, after all - it doesn’t matter. Just have fun with it. And if you can drive your family spaghetti-mental at the same time, all the better! 
I already know my Spagvember’s going to be f*cking brutal this year. I still can’t wait, though.