Here's a more general observation rather than a "tip." But it's nonetheless one of those things that bear repeating. It's all about paying attention to detail. Your success depends on it.
When arranging your songs, always aim for conciseness of delivery. Think about talking. You can beat about the bush or you can get straight to the point. Sure, there are times where getting straight to the point may not be the best way. But most other times it really is the only way.
If you're planning to design your dream home, chances are you'd feel a lot better if the final plans were actually drawn by a professional, wouldn't you?
Many "one-man bands" (which includes songwriters and producers) often have this attitude: "I do EVERYTHING in my music and I'm gonna make it ON MY OWN!"
Today's "tip" is more of a general word of advice than anything technical. But it's extremely important nonetheless. From my personal experience as well as from watching countless others, I believe that this just has to be one of the most important bits of advice I can only wish I had gotten back when I was starting out.
Many artists, some very talented ones included, have trouble easily telling the difference between a perfectly pitched tone and an "imperfect" one. You can often hear records where the singer (or a guitarist) performs certain parts just a "wee bit" under or over pitch, just here and there.