Just a quick announcement that I updated the CookieMonster-plus plugin (since I realized I hadn't announced the last minor update).
The new features include a config option for setting the cookie duration (default is 30 days) and integration with Contact Form 7 to allow pre-filling text and email fields based on cookied values. I'm considering the same feature for hidden fields, but I ran out of steam just getting the visible fields to work properly.
In case you missed the significance, you can use CM+ to pre-fill people's name and email address in contact forms so you can pass them from, say, a squeeze page to a survey page. CF7 has lots of flexibility in configuring forms and can be easily setup for surveys. When combined with the Contact Form 7 to Database Extension you can get something akin to the Ask Database survey functionality but self contained within WordPress.
CM+ 1.3.6 added CF7 shortcodes text+, text*+, email+, and email*+ to pull values from cookies or other parameter string values. They behave just like the non-plus versions, they just check the cookies and parameter string for default values to pre-fill the form.
As always, feel compelled to download CookieMonster-plus and sign up for my plugin announcement list below.