My provider has a data cap if 5gb. I have a Samsung Acclaim. Before I went with my current provider I had a smart phone and the provider had no data cap and I downloaded videos, pics, ringtones and streaming videos limitlessly. I am now struggling to stay under the 5gb limit every month. I've heard that wifi doesn't count against the 5gb cap but whenever I try and use it I never get a signal that lasts for very long and it's usually a very poor signal. Any advice, tips or help would be greatly appreciated.
I don't know what version of Android you're using, but here's what you can try - go to SETTINGS > Wireless & Networking > Wi-Fi Settings. In this screen, press the MENU button and then ADVANCED. Click WiFi Sleep Policy and set it to NEVER.
This helps in retaining the WiFi connection.
If you have a weak WiFi signal to begin with, then the best tip is to move your device closer to the WiFi access point to increase signal strength.