This isn't in response to your question about interior cleaning but I was reading the related links below. One talked about Hull cleaning. My first year cleaning my boat hull I got something from Walmart (don't remember exactly what it was so I can't really comment on the brands that are recommended in the post) but it didn't clean very well and if it wasn't rinsed off at exactly the right time it would leave black streaks. I spent more time cleaning the black streaks than the algae. Last year I used Marikate "On & Off Hull Cleaner" from West Marine. This stuff is awesome. Melts the algae away in seconds and does not leave streaks. I think on the bottle is says pour it in a bucket and brush it on - but luckily the guy at West Marine happended to mention to me to put it in a spray bottle which made the cleaning go much easier and much faster, plus I used less than half the bottle this way. Cleaned my whole hull in under an hour where the year before it was easily 4 hours. Careful with the mist though, this stuff is really potent. Last year I held my breath, sprayed an area, then ran to fresh air. This year I'll just wear a respirator