Need to increase my wifi range in house, what can I do/buy?
Edit: searched up these, which one of these are the best? Suggest others if you have any
http://www.dicksmith.com.au/networking-wireless/belkin-n600-…
http://www.dicksmith.com.au/networking-wireless/netgear-n300…
http://www.dicksmith.com.au/networking-wireless/belkin-n300-…
To increase the coverage in your house, the simple answer is that you need better antennas or more access points (connected by ethernet cable to your modem/router).
Range extenders have their own limitations.