I love my Nails INC colours and own over 30 bottles up to date but I have a problem with their staying power. If I use a polish on it's own -- it lasts only a few hours and chips on the same day. If I use Kensington Caviar Base and top coat -- it lasts 2-3 days. I now use OPI top coat so it goes like this: caviar base coat+nails inc varnish+OPI top coat+Kensington Caviar top coat - this may stay on my nails for up to 4-5 days. I have read reviews that nails inc colours last up to 10 days, please can someone help with a proper technique on how to apply nails inc varnishes so they last up to 10 days or at least 5-7? I do clean my nails before applying base coat with a nail polish remover. Also, can anyone please advice a brand of a nail polish that really lasts 5 to 10 days? Thank you in anticipation.