I'm due to go on holiday on sat. My nails are in an awful state though they are splitting and therefore short - is it worth me getting a mini manicure in the hope it tidies them up a bit ( I find the beauty therapists nail varnish stays on better) or do I stick a bit of clear varnish on then and hope they grow a bit in the sun and maybe get them done on holiday? Also... What can I do to improve my nail health?