What is the quickest way to get rid of split ends besides cutting it?

wet the ends, apply a little bit of conditioner to them... eventually you have to trim them.

There are hair companies that actually have shampoos and conditioners that reconstruct damaged hair leading to split ends. Companies that sell such products for example is "Sunsilk". They have this olive serum nutri-complex (TM) for damaged, brittle frizzy hairs that lead to split ends. Try it.