La De Du

Get the most out of email and personal tech.

Can I Use an Underscore ( _ ) in an Email Address?

Have you noticed underscore characters in email addresses? Wondering whether they are okay to use, and how you can add...

Struggling to quickly switch entire words from upper to lower case or just toggle a single character in Vim? Vim’s...

Wondering how to send more than one photo in an email? Curious about the format an iPhone uses for your image...

Does your Mac’s screen have this habit of going dark just when you’re about to have — and type out — a brilliant idea?...

Facing a desktop littered with “New Folder” and “Misc” clutter too, dreading the slow process of renaming the lot?...

Wondering what lurks behind the scenes and screens of your emails? Want to uncover hidden details or retrace a...

Want to type special characters more easily and type in a foreign tongue naturally? Trying to match the characters...

Not all words in your email signature carry the same weight. Your standard sign-off deserves a bit more dazzle and...

What in the Ancient Greek world is σλδ (sigma-lambda-delta, or “sld”) supposed to mean, and how would you even...

Tired of black text among more black text in Apple Notes turning your ideas into a monotonous blur? Looking to make...

Wondering how to type an emoji as simple text or turn a text character into a colorful emoji? Curious if there’s a...

Dark mode tiring you out — especially when it makes some emails look wrong? Looking a calm escape from light mode’s...