OK... so firstly, I need a super effective top coat. I am tired of my nails looking great for a day and then starting to chip. So what top coat have you found to be the best? Secondly, I bought OPI Russian Navy when it came out. I love it, and I'm wearing it now. Do you think that, with Chanel releasing Blue Satin, navy polish will still be in/be in again for spring? Also, if you have Russian Navy, did you also buy Blue Satin? Are they different really? Thanks!