(Image credit: Shutterstock) We do a lot of stuff on our phones, and having an abundance of storage space can really come in handy — especially if you're finding your old 128GB of free space doesn't cut it anymore. But those storage upgrades can get very expensive if you're not careful, and the worst part is that you can't take them with you next time you buy a new phone. A 256GB iPhone 17 costs $799, but a 512GB model is $200 more. That's $200 extra that you'll need to pay every time you buy a new iPhone, and all so you can maintain that same level of storage. Luckily, you don't have to pay for extra storage, and there are alternative options available that could save you money in the long run. Cloud storage (Image credit: Shutterstock) I will caveat this particular point because cloud storage subscriptions are another kind of trap.…