Each year in October the social media community challenges itself to post, share and declare one gratitude per day for 40 days. From what I understand, the effort started eight years ago by Tisha Poncia, who blogs at On the Wings of Gratitude.    Usually, I shrug away from social media challenges. However, the more I thought about this one, the more I realized, I needed to do this. Although I didn’t post it anywhere, I thought I’d share my first seven days with you.   Day 1: Toilets. I’m thankful for toilets—indoor plumbing, I should say. The first five years of my life, we had an outhouse. Words…