Here's some standard freebie drivers.
The top "Trane" was a standard give-away, with a reversible standard/phillips shank. Used ones like this for years. But the tips were kinda soft, and with the newer stats, often would bend or damage the over-tight screws.
The Next one was a newer style with a triangular profile. Easier to get a grip and turn, but not much better shanks.
The third one was a real step up as far as features go. reversible shank, core remover, and an integral level. So, three tools in the pocket protector got replaced by one! Older mercury-bulb stats needed to be level to operate correctly. But as new electronic stats became popular, levelness wasn't necessary for operation. Only aesthetics.
The bottom one was one I picked up at a thrift store. Has a #1 phillips and a T6 Torx. Knurled grip was nice, but - as with all of these types - as my hands and fingers stiffened up were harder and harder to hold.