Go to Halfords a.k.a Halfrauds and get yourself a pair of Glass cleaning cloths
They come as a twin pack for £3.50 I think, one will be dark blue & the other is light blue.
One side of each is like mesh for cleaning bugs off and the other is a soft microfibre for wiping clean - best thing I've got for my windows
PS - I had the Meguiars Glass cloths (£8 each) before I used these - fell apart in the wash and they were too "fluffy" :dapprove: