I use Idophor. I was using C-Bright because it came with my equipment, but it left a lot of chlorine smell. My sense of smell is terrible so I figured If I could pick it up, there must be a lot. There was Everything had a slippery bleachy feel.
I did some pretty extensive research on Iodophr as a no rinse. Then I got a spare bucket and marked it for the 2.5 gallon size. Then I put in the half cap of Idophor and I'm off to the races. I usually was my instruments, racking gear, funnels, etc. Then I pour the sanitizer mix into the buckets, carboys, etc and swirl and swoosh. Sometimes I toss a paper towel in the sanitizer bucket to use on the sides of the other buckets, the outside of hoses, etc.
My other strategy if you can call it one is to wash twice. once after racking bottling, etc. everything is put away clean and sanitized from that session. Then I do another quick soak and rinse before use.
Maybe over kill, but I have had zero contamination or bottle bombs.