In my experience you've got to be careful as some screens have a 'coating' that if you're not careful you can rub off which will be noticeable every time the screen catches the light. With this in mind I would be careful of using such things as Alcohol as it can be too abrasive, likewise 'Polish' such as Mr Sheen contains a wax. Water and a Microfibre cloth are a sensible suggestion and safe too.
These days I use: 'Computer Care Screen Cleaner' google it, and include the quotes and look out for Order Code: N55BX from ****** which is a good all round cleaner. The general advice however is to try any cleaner in a corner, away from the area you look at daily.
HTH