Well "Spaces" mostly fits the bill after you switch off the 'change spaces when switching to an application' setting. This setting it makes it very hard to add

Well "Spaces" mostly fits the bill after you switch off the 'change spaces when switching to an application' setting. This setting it makes it very hard to add a 1st window of an application to the current space. For example if I want to open new Chrome window and I alt-tab to it, it will switch to one of the spaces that have it open. With the setting closed it remains on the current space and so Apple-N will open new window. Once you remove the setting all other things works more or less as expected. Apple-Tab will switch to one of the windows of the application that is visible on the current space. Apple-~ will cycle through application windows on the current space etc. The only problem is with applications like Skype, which have the single window that you need to switch to. Right now I need to remember on what space is it and switch there.