Because it was such a great, joyful experience (and I still didn't get new laces), I've continued my barefoot runs. Yesterday morning I ran 10 miles (6 miles brick sidewalk, 4 miles sandy forest path), without any problems whatsoever. You do have to watch out for broken glass trough, so when I go between dusk and dawn I put on my aqua socks. But otherwise, I've found my bare feet to be incredibly resilient and wear-proof. Also, I am running completely pain-free for the first time in years. It does require some changes to your stride, most importantly not landing on your heel. But not being constrained by rigid running shoes anymore, your body is able to figure out the rest as you go.
In a few weeks, I'll be running the half marathon in my city. The self-conscious part of me wants to wear shoes and avoid the questions and strange looks. (You will get those, anything from people shouting "Hey, you forgot to put on your shoes" to others nearly walking into trees and lamp posts while staring at your feet in amazement.) But the Dvorak-typing, trackball-using part of me just want to do what feels best, regardless of any social standard, and go barefoot: zero pain, maximum joy.