Just thought I'd give you peoples some humour at my expense ;p.
Ever since I got my first gi, several months back, I'd been wearing it with the tag at the back. After all, that's how normal clothes work - should be the same, right? Except for the extra padding on the knees being at the back... weird, that. So you can imagine my embarassment when it obviously turns out I'd been putting on my gi pants back to front all that time. Ah well. Hopefully not too many people noticed