I live in Saarland!
Germany is famous for its bread, the traffic light system, and waste separation and disposal. The Organisation for Waste Disposal (Zentraler Entsorgungsverband Saar (ZKE)) will take care of your separated waste as long as you put your waste correctly in the dedicated containers. You, therefore, have to separate your waste into:
For your glass waste (including the glass bottles) without deposit (Pfand) you might or might not have a container in front of your flat. In that case, you might need to dispose your glass waste in the closest public container available.
You will find further information here once you have entered your postal adress. (Unfortunately, the information provided is not available in English.)
However, if you want to take a look at the dates when the waste is picked up (so you can know when the container is going to be more "empty") or to have a general idea, you can click the link above and follow the steps here:
I live in Hannover!
In Hannover, some of the waste is still put out on the street (though since 2017 the region is trying to also transition to big trash bins). The similar rules also apply:
The blue and yellow bags are issued in shops and at recycling centres. And depending on where you live, you take the trash out the night before for "Zweckverband Abfallwirtschaft Region Hannover" to collect.
More information in English, you can find here.