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As a website owner I’m constantly checking different browsers at different resolutions to make sure that the site is going to look at least tolerable for everybody. This is especially important for me since I’m really not a very good web designer… so I have to triple check everything. There’s a tiny utility called Sizer that helps me accomplish this task with ease, and hopefully can help somebody else. After you download, install and run the application you’ll notice a tooltip anytime you resize a window that tells you the current dimensions.
(via Resize Windows to Specific Dimensions Easily With Sizer :: the How-To Geek)

As a website owner I’m constantly checking different browsers at different resolutions to make sure that the site is going to look at least tolerable for everybody. This is especially important for me since I’m really not a very good web designer… so I have to triple check everything. There’s a tiny utility called Sizer that helps me accomplish this task with ease, and hopefully can help somebody else. After you download, install and run the application you’ll notice a tooltip anytime you resize a window that tells you the current dimensions.

(via Resize Windows to Specific Dimensions Easily With Sizer :: the How-To Geek)