Monogram Bulles MM Reveal

this was my first purchase. I loved it on the models and had to have it, and now I am a LV girl all the way. The bag is so fun and sets the mood for the summer. I actually found this blog(google) because I just called the LV store in my area trying to get advice to clean it. My Bulles has been sitting in its dust bag and shopping bag in my closet for over a year now and I just went to pull it out to pack for our trip. My rope handles have a light brown stain to them, so I went searching for cleaners or what nots that wouldn't destroy my investment. Any advice? I know it has a sealant but it still got dirty. Weird huh?!