I only recently learned that, if you’re using the on-screen keyboard when entering an email address, you can hold down the period key and it gives you all sorts of suffixes (.com, .org, .edu, etc.) I found another one today, quite by accident. If you’re not typing in an email address, the same move gives you a quotation mark. Simple and quite convenient, but why haven’t I heard about this before today? Are there any more of these shortcuts out there?