Much ado about ido-mode (Emacs)
I don't really get the appeal. It makes opening files in the minibuffer feel claustrophobic and the defaults prevent you from opening a directory. I know where my files are, and if I don't, I open a directory using find-file and browse through in dired-mode. I also find it very hard to visually scan a horizontal list of files/items.
@Ben Sturmfels I rather like ido-mode, though I do hit those moments every now and then where I feel like I'm fighting it, but I still feel like the net gain is positive?
Nonetheless, there are some neat helm-based file/buffer completion prompts you might like trying out if you'd prefer a "vertical" completion system that's a bit less hyper about trying to finish what you want. (I've never quite swung into a helm routine myself though.)