These days, many glass doors are built with a double layer of glass. You can buy doors with built-in blinds, the advantages of these kinds of doors are many, very little need for cleaning as the vacuum between the two panes of glass keep away the blinds from getting dirty. Controls built into these kind of doors, so you can lower and raise the blinds, or you can change the angle of the slats. Buying these kind of doors will not cost you any extra than buying the blinds separately and installing them over glass doors. These type of mini blinds are usually long-lost and operate without any problems developing.