I recently was tasked with converting a Tumblr blog into WordPress. On Tumblr, or at least on the theme I was dealing with, they have a pretty fancy archive section that lists all the posts as images underneath the months. If there aren't images, then it shows a little text. To do something similar...
Using the @media rule in your CSS allows you to target different media types, and screen sizes, from a single stylesheet. Using media queries with max-widths is integral to the current push towards responsive design. This can also be used to create your print styles using @media print. You'll notice this used on modern base-templates such as the HTML5 BoilerPlate:
Adding a “Subscribe to Newsletter” checkbox or radio button to an existing contact form is incredibly painless using the MailChimp API. Include one library file, and you’ll have access to all functions the API has to offer. In this example, I added a Yes/No radio selection. You could easily change this to be a checkbox. When "Yes" is selected, and the form is submitted, the contact form does its thing, and then the user is added to a MailChimp List.
If you have some PHP numbers you need to work with, creating a percentage bar is incredibly simple. Calculate the percentage, and then set a width on a DIV that can then be styled. To set this up quickly, I set the percentage bar to 100 pixels wide. For posting this, I've added a scale factor in case you want to make the percent bar wider.
If you're locked out of WordPress and can't reset your password, the official docs list several options that allow you to access your administrator account again. But what if you want to create an entirely new admin user? For blogs that I have FTP access to, but no working WordPress password, I threw together the following script to create admin users.
Most sites contain areas of text and HTML that are repeated throughout the site. Links in the footer, copyright information, a button or phone number in the header, or some other static content. If you're a developer working on your own site, then you may just keep this in an include file and edit the code manually. If you're using Wordpress as a CMS for a client, then it's a good idea to make these areas of text/images editable, so that they can have full control of their site.