I just kinda of started like a month ago and trying to get a consistent basis going. I don't do it every day though, probably about 3 times a week. I bought me a pack of floss picks as well. First time I did it, I had a lot of crap in there and I bled a lot. Now it's cleaner than ever and minimal blood.
I always rinse my mouth out with water after I eat though to get particles of food out. I think that helps, so when you do have to brush your teeth later, it's not as dirty.