Change owner of everything in PostgreSQL
There are a lot of tips out there for changing the owner of tables and sequences and views in PostgreSQL. This can often be needed when you are reworking a project or changing the structure of your database.
Using SendGrid for Email
Email can be a pain in the gazoo. Your code works, you've set up dovecot and postfix correctly, and email recipients... are not receiving emails from your application. The most common cause of failure, of course, is spam filters. Depending on the nature of the spam filter, the email might be automatically deleted!
Resizable Modal Views in iOS iPad Apps
There are many circumstances where you want to present modal views in an iOS app. The one that confronted me was a Login form the first time a user opened the application (and technically, any time thereafter if she never successfully logged in).