I just did something that I was advised not to do, which is to bug the agent to whom I sent my manuscript to see how it's coming along. It occurred to me after sending the email that I never did confirmation from him that he'd gotten the manuscript in the first place. I just assume it went through, but sometimes with large attachments, things don't work properly.
So we'll see.
Sometimes, you have to ignore advice. Actually, I'm getting to the point right now where I've hit advice overload. How to get published, how to write for the mass market, the rules of dealing with agents, the rules of contacting editors, the rules of structuring a story, the rules of character, the rules of dialogue, the rules of... AAAAAAAAAAAAAAAAAGHH!
Many bits of advice contradict one another, or at least don't line up properly. Many other bits of advice seem sound, and then you see exceptions littered all around. So I think it's time to put a bit of a hold on advice. It can get paralyzing after a while.