For me, the problem with toe clips is the awful scraping sound they make for the first 10-20 pedal stokes as I kick at one of the pedals trying to get my foot into the clip.

I somehow missed the toe clip era the first time around. I grew up in that era, but my bikes were too cheap for fancy pedals like that. I used toe clips for the first time last year preparing for L'Eroica California. After a few weeks I got to the point where I could use them with only minimal embarrassment. The worst part is that I couldn't find clips that my regular street shoes fit into, so the toe clips don't even save me having to change shoes.

Those half clips that revcp showed might work for me, but do they actually provide any significant foot retention? The problem I have with bare platform pedals is that my foot is constantly sliding off the pedal because I've become so accustomed to clipless.