In our house we have a tradition this time of year. My wife spends hours baking frosted sugar cookies and I spend hours trying to avoid helping her so that I can eat them later with the appropriate feeling of consequence-free pleasure. After getting caught in the kitchen on other Sunday afternoon business I was coerced into sifting together some flour, baking powder, and salt. Then I figured out that the deck needed sweeping. While I'm busy doing this marginally important task, Daughter Number One comes out and asks, "Are you trying to avoid helping Mom with the cookies?" I of course try misdirection and state, "No, I just have other things to do right now." She sees clearly through this with The Sight that only a six year old has. "OK, so you're trying to avoid helping Mom with the cookies." Then she turns back into he kitchen.
If you are getting lazy and uninspired in your writing, your characters will be obviously not doing what they should be doing. Readers will note this. Remember that fiction is not like real life and your characters have to stay on task. They can eat someone else's cookies, but they have to make it a little more dramatic than coming in from the deck with a defensive 'What?' look on their face.