Cure long startup delay of vs2008 debugger

Lately, starting up a debugging session in Visual Studio 2008 has started to take a really long time (as in sometimes minutes!). I was contemplating uninstalling and reinstalling but the prospect didn't excite me. Finally, I did some digging around the Interwebs and found my answer: apparently, large number of breakpoints can significantly impair debugger startup time. No, I don't know what "large" means, but Debug -> Delete All Breakpoints cured my problem and now the debugger starts up instantly. So, posting this here in case someone else runs into this problem.