Easy way of compressing many picture files

[lego]

Just grabbed some pictures off my camera that i want to upload, problem if thier all 2.5meg each. Theres about 150 of them, is there an easy way to compress them and/or reduce to size of the image.

Would rather do this in a couple of clicks rather than each of them one by one.

Also i have a movie i shot in portrait mode which i need to rotate any ideas?

Thanks