If I ever told the truth in my life, it's a hell of a good time to hedge. I usually can't find it in me to pay for options - they seem too expensive ( partly that's a flaw in my personality that I have to live with), but I usually like a simple hedge.
And now is the time for a simple hedge. If you lock in a good profit, don't look back at money left on the table. Here is my thought, but I preach to no one: there is a big boogeyman waiting to sack these high prices, when they get things going their way just a little bit, the funds will short the hell out of things, I plan to be short before the funds.
Another boogie man to fear is the general economy, if they weren't lying about the inflation rate, we'd have been in a recession the last several years despite all the phony money and deficits. This uncertainty justifys the cost of puts. Somebody suggested buying out of the money puts to save money, and that's pretty good advice.