Tabs in Finder & enhanced stack grid

Would it not be great to have tabs in finder! I mean less windows popping up cleaner work space, all you need is one window open. Also stack grid mode. Arrows on the left and right, so that if you have many applications or documents to view in that one grid, you click the arrow and a new grid appear with the rest of your apps. Better than going through finder or expanding grid to a larger size.🙄