Windows 7: Folder file size "housekeeping"

Not sure if this is the right part of forum for this question! or if im missing an obvious answer....

As im having a clearout and tidying up storage folders prior to new back ups - is there a way in Win Explorer or a third party utility to see total size of a folder so when i look at a list of HDD contents i can see which is using up most disk space? each folder may have sub folders as well as files, but apart from right click to Properties i would like a quick quick way of viewing folder size. or even sorting by size rather than folder name. The Size column after Date Modified and then Type isnt wont show a total size. Surely theres a way of Windows or a utility that can show the total size of a folder??

I can then quickly go to a folder which has a large content and see if i can delete some of its contents. Folders like "Photos" is obviously going to be large, but others arent!



Also as i still get confused about the way WIN Backup works im seriously considering Acronis so as to have incremental backups.

thanks for any tips,

i use disk space fan for this purpose...

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