The internet is full of posts that say it is necessary to replace your bra quite frequently. But I'm sure many of these posts are written by companies that sell bras. How do you know when it's time to replace?

I'll confess to having most of my sports bras for years, and using them regularly, but as long as I feel supported I figure they're doing their job. My regular bras tend to get loose and lose shape faster, but it's hard to know when it is time to pull the trigger and get a new one...