2. Carrier Hop
This takes a lot of planning. If you find a good deal with another carrier, consider switching. Check on your carrier’s cancellation fees (and they might offer you a good deal to keep you).
Know how long the promotion lasts and what the charges will be after it expires. Always know what the new carrier’s cancellation fees are. And of course, make sure your phone will work with your new carrier!
And finally, ask for freebies.