The biggest suggestion that I can tell you is when you cast your line out, don't just start reeling, manually close your bale. All of the pros will say that helps with not getting as much line twist. Check out this link.
http://www.wikihow.com/Keep-a-Spinning-Reel-Line-Trouble-Free
http://www.wikihow.com/Keep-a-Spinning-Reel-Line-Trouble-Free