I'm working at a (non-perl) project where there are some parts I don't like. I wrote "bugfixes" at a few places. I've applied these only to my copy of the code, and sometimes it turns out that my fix doesn't really fix the problem or it causes a new one. For those changes that really fix something, I'll ask to commit them to the real code, but I've yet to decide on how exactly I'll do this. My fixes are typically not stylistical, I try to change only content.