Disable Posts from appearing on Homepage

Roy, I would suggest setting a Static Front Page for the site. You can then also create a “blog” page of you wish for use by the cafe later on.

A static front page is a good idea but to answer your question use the following css to remove all content from the home page including the widget.

/* remove all home page content  */
.content.home.blog {
display: none;
}

If you wish to keep the widget then you could use something like this in your css.

/* remove home page content  */
.home #primary {
	display:none;
}
/* fix widget after remove home page content  */
.home div#secondary {
float: right;
}

It’s pretty simple, open one of your pages (for example: about me) and on the top-right corner you can see a label named “Screen Options”.
Tick the box “Discussion” and in the same page under the text editor you will be able to disable the comments!