I talked a little about this concept in my free video course of music marketing. It's so important though, it's worth mentioning again.
When you send out something via mail, you need to hand-address the envelope, I know that takes a little longer than printing off a label via your computer, but...
1. People get a lot of mail.
2. You need to do anything you can to make sure that your mail gets opened.
The idea behind writing an address by hand is that it makes your package stand out from all the others in the mail. It seems more personal, like something "Aunt Betty" is sending rather than "just another package" from a band or label trying to get attention for its music.
If you really want to go deep with the concept, include a personal letter within the package.
Here's an example of something I just got from a charity I support...
Being a charity is a lot like being a musician. There are lots of them to support and getting money from people doesn't just happen...especially in an economy where most people think money is tight.
This card was part of a larger package of material I received. The outside envelope was hand-addressed and the package itself was what I call "lumpy mail" style. In other words, it had something inside the envelope that made me curious to open it. I have video examples in my free video course of music marketing, if you want to know more about the concept.
The issue you're going to have when sending demos, even with a good "lumpy mail" package, is personal connection. You've got to show the person opening your package that he is important and not just another guy on your mailing list.
A personal note is how you get past this. Read it. It makes you feel like your donation is the one making all the things listed on the card happen.
This concept it powerful. In fact, it works in a number of ways...
You can use the same technique when you send out a mailing to promote a gig. Don't just do a mass email like this...
Hey Everybody!!!! We're playing Club X this weekend!!!
Doors at 8pm. Cover is $5. Drink specials until 9pm. Be there or be square.
Zzzzz... Do you know how many of those go out every day?
Instead, get a physical email address, send everybody a postcard with a handwritten note on it thanking them for their support. Better yet, tell them to save the postcard and bring it with them to get a free drink. If the cover is $5 and you're getting drinks for $2-3, you'll still have a profit. And since nobody goes to shows alone, the person will likely tell friends and bring them along.
This is how you build relationships with fans.