I totally agree about slotted screws.

As a kid, I could never get the hang of Phillips screws, so I hated them. Once I discovered I had poor screws and poor screwdrivers, I saw they're excellent. These days the best screwdriver on my tool belt are, of all things, from Harbor Freight. The Phillips one will hold a good screw with the screwdriver level, so you can insert from a distance. The Slotted is a bit thick for my taste, but the pair are a nice size. More importantly, in plain sight, on the top, is a + on the Phillips and a - on the slotted. You can carry both always and see at a glance that you're picking up the right one. I'd show a picture but that means slogging through five pages of product at their site.