Reducing the number of images (or their quality) will decrease the amount of bandwidth you use. However, don't get too worried about this unless you are reaching your bandwidth limit each month or your pages have excessive load times.Am I right that I should rather add baners on my website just like links to other websites in order to make my website smaller for the reason to save my bandwidth a little bit?
It would save you bandwidth, but unless you make up 50% of your visitors, the saving would be barely noticeable.Could be this hint helpful to save my bandwidth a little bit?:
-don't visit my website on my own having no reason, rather browse through it at my computer harddisc where I've it saved ?
That depends on the company. All paid hosts will offer access to a control panel that allows you to view space and bandwidth usage etc. With free hosting they may not, but that really depends on the provider.and is there a possibility to monitor your current bandwidth?