Honestly, Gmail's been my daily driver for years now—both for work and personal stuff. It's nothing fancy, but it just works. I use it for everything: client emails, newsletters I actually read, and tracking receipts for tax season. Labels and filters are a lifesaver; I've got folders for everything so my inbox doesn't turn into a dumpster fire. Also use it for account sign-ups since almost everything needs an email anyway. Not the most exciting topic, but it's reliable. That said, I do use a separate email for sketchy sign-ups—keeps the spam out of my main inbox.