If you could go back in time what?

What 3 items would you take and why.
I would take

iPhone 5 -
The internet
Air max nikes

It depends on how far I'm going back.
If it's only back to this morning, I won't take anything because it will be there when I arrive.

As with Major Martin, it depends on how far we're going back in time… I'm only 16 so we can't go too far back: p

But, I'll try to answer as best as I can. I'd go exactly to the day where my mom ran over my cat, take the cat, my phone, and a packet of noodles.

Clothes
A tent
A weapon!

Am I only allowed those three choices? If so, it would depend on what comes with that, why? Let me explain.
If I chose an iPhone, would the iPhone still work as it does now, even if there were no cell phone networks or no satellites etc? Or would this be like in "Doctor Who" where I can make phone calls and access the internet without time being a factor, meaning that the iPhone would function just as it does now?

Same thing with the internet; are you saying the internet would function just as it does now with no reference to time?

The third one… I will say I do not understand this one, out of all the things you could choose to bring back in time, you chose shoes? Can you expand on that please, then I could answer better.

A laptop computer.

A Terabyte external drive crammed with history and other practical information.

A solar-cell for power generation.

With those three items I could land in the 1880s and take advantage of gambling and the stock market to become the most powerful tycoon the world has ever seen.

Phone 5.