Ok, so say you want to spam your characters name over and over? Well, normally when you just put a space in the chat bar and press enter, nothing happens, well there is an answer! (To a question no one asked)
Instead of pressing space, use an invisible character, to do this press alt + 0160.
So if you want your name to continuously appear in chat, type /e "alt + 0160".
So say my character's name is "Roflmaowtf" then the end result would appear like;
Also, this is a good way to hide folders, apart from using attrib +h on a folder, you can rename it to alt + 0160 and right click it -> properties -> customize -> change icon -> and choose a blank icon, as in, its completely transparent, it looks like a gap between icons, but it's now.