Just a few additions/thoughts. In list context like that is called the range operator and has a totaly different fucntion than the flip-flop scalar operator. Also i would consider the use of it the idiom for perl programers, and the

for($i=0;$i<10;$i++) {
   &do_something($i);
}
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form a leftover from c. It may have its uses but its far hader to read. Also if you want the above loop from 1 to 10 just do

for($i=1;$i<=10;$i++) {
   &do_something($i);
}
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Thats easier to read than $i + 1 and actualy does what you want it to instead of tweaking it.