This application will save your battery by disabling wifi when there is no access point in range. You can set how often wifi matic will try to re-establish connection. This will fix unstable wi-fi connection.
Also check out ZEMB Free Battery Saver http://goo.gl/CSP2wQ
This application does not staying on memory, so simple and small, wont take your available memory as service.
Added option to fix wi-fi packet lost or disconnected for old routers. But this feature intentionally works for 15 times then you have to check the option again.
This application does not use Location service, which even use more battery to check location.
You can track indirectly what time did you leave office or home from Connection History.
You may have used: wapdroid, wifi onoff, auto wifi toggle, wifi auto on, auto wifi off, unlock with wifi, wifi lock, wifi fixer, wake lock