Last weekend I just went on my first ride outside this year and was being reintroduced to all the wonderful things (being outside, feeling fast unlike on the trainer,etc) and all of the not-so-wonderful things (i.e. the HUGE pot holes, stupid drivers) and the clipless came right back to me! So no worries--once you learn it once and you'll be fine Those injuries are an investment for future prevention

Anyway, I always unclip my left foot because I find it awkward to begin my pedaling with my left foot. I prefer my right foot to get going on my bike I did ride with a guy, however, who always unclipped his right foot but he wasn't left-handed so I guess it's just a matter of preference with what you feel most comfortable.

My left foot happens to be my less coordinated foot....between the two, it's the last one to clip in....always.

I started out on SPD and now I have LOOK pedals. I loooooove LOOKS I have kind of a wider foot and so they help distribute the hot spots They have a counter weight so they never are the wrong side up.

Surprisingly, I have never had a clip-related fall. I attribute it to being coached by a more experienced rider I've had close calls but my only really bad fall was a consequence of being a newbie and riding with someone else. I tapped her back wheel and fell. I can't even remember the fall I just remember freaking out because I knew I was going to hit her and then I was on the road....

Anyway, good luck with your clipless pedals! My favorite practice exercise is to go around the block and stopping at each corner. That way, you know when to expect to stop (UNLIKE traffic lights! ).

Happy clipping (and unclipping)!