The last time (2002) I cleaned, brightened and sealed my cedar siding, I used a homemade bleach, water, Tide combination that I gleaned from this forum. I used Wolman to brighten and Ready Seal to finish. I was very happy with the results. Since that time, I have followed all of the talk about oxygen bleaches. I am wondering if I should change my cleaner this time. If so, can anyone recommend a product or a formula to use? Many thanks for all of the shared expertise. I have learned so much from all of you.