He also began to write straight comedies, and his plays included Aren't We All? (1923), Spring Cleaning (1925), The Last of Mrs. Cheyney (1925, which ran for 514 performances), On Approval (1927), Canaries Sometimes Sing (1929) and Let Them Eat Cake (aka Half a loaf) among others.
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Allume Systems originally developed exclusively for Macintosh, focusing on data compression and management utilities, such as the StuffIt family of compression utilities and the StuffIt InstallerMaker delivery suite, the ShrinkWrap disk image utility, and its Spring Cleaning system optimization utility.