I haven't trooped much as of late. There are two reasons for this. First, I don't have a lot of free time, as I manage two drug stores, but more importantly, when I was removing my armor from it's bin before my last event I discovered a great deal of yellowing on my bucket. I haven't felt comfortable trooping with such ugly armor. I recently bit the bullet and tried Retr0bright, an open source formula that uses easily available ingredients to reverse the UV damage that causes the discoloration.