neilgee

This plugin adds support for placeholder text in browsers that don’t support this HTML5 feature including Internet Explorer 6.
The plugin just activates the placeholders.js script by James Allardice http://jamesallardice.github.io/Placeholders.js/
There is no further configuration required.
For HTML input elements use the placeholder attribute and add a value, this value is removed when a user inputs the field. http://coolestguidesontheplanet.com/add-a-label-into-a-text-input-field-in-a-html-form/#html5
The script is 4KB and is set to load in the footer and has no library dependencies.
<h3>Usage</h3>
Just activate the plugin which loads the script, their is no further configuration.

Placeholder Text

This plugin adds support for placeholder text in browsers that don't support this HTML5 feature.

Tauno Hanni

This plugin is a developer’s toolkit for collecting form data from your WordPress site. It provides the necessary hooks and utilities for you to manage how data is stored and displayed later.
The best way to get started is to look at example-functions.php and example.php in <code>/plugins/form-data-collector/example</code> folder.
You can see a list of utilities and hooks <a href="https://github.com/taunoha/form-data-collector/wiki/" rel="nofollow ugc">here</a>.
Not compatible with 1.x.x versions 🙁

Form Data Collector

This plugin will help you to collect and store form data.

Placeholder Text vs Form Data Collector