Should I cut my sim card or just buy a new one?

So my dad is getting the iphone 6 for Christmas and is giving me his barley used iPhone 5S. The problem is right now I have the 4S which has a micro sim card, while the 5S has a nano sim card. I watched some videos on youtube and know how to cut the sime card down to the correct size. Or should I just buy a new sim card for my phone and get all my information back by syncing my icloud with the new phone.

*****ALSO, what would be the difference between cutting down my old sim card and using it and buying a new sim card and syncing the used phone with the icloud?

Trying to find a speaker that fits this specification, but I have no idea where to start?

Trying to find a speaker that fits this specification, but I have no idea where to start?

Added (1). I want it to be quite loud, loud enough for decent parties in a house.

I want it to have bluetooth or NFC so I can use it with my android phone, and potentially my laptop.

I want the bass on it to be pretty powerful

I want it to be roughly £80 - £120.

I would like it to be rechargeable, with the option to have a DC plug as well.

I'm not bothered how small and portable it is.
I'm not bothered whether it can support iphones or not.
I'm not bothered about USB charging

Added (2). It MUST have some way to connect through a 3.5mm jack

16GB iPhone 6 or 64GB iPhone 5s?

16GB iPhone 6 or 64GB iPhone 5s?

Added (1). I'm looking into a new phone from AT&T and those are the two I have it narrowed down to. Both of the ones I'm looking at at Certified Like New. The cost difference is about $50 (the 6 will be cheaper). I'm willing to pay more money if people think that the extra space is worth it, or less money if people think that the 6 is a far better phone than the 5s.
Let me know your thoughts and opinions. And I'm set on another iPhone, so please no suggestions of other phones.

MP3 download on iPhone without Wi-Fi?

So it seems every app I download on my iPhone for music needs Wi-Fi, does anyone know an app that I can just download songs on an listen to without Wi-Fi?

What are some easy ways to save up money?

I'm turning 15 in a matter of months and i now realize that, I need my own money! I have put it out there that I can babysit any of the kids in the neighborhood/family friends, but no one has asked me (i have experience!) But are there any OTHER ways that I can easily save up? (I also want to be able to purchase an iPhone 5s by the end of my contract (In June of 2015)

No space on my iPhone because Photos?

I use iPhone 5s, iOS 8.0.2, 32 GB

I'm facing this problem which is from settings, I only have 2,190 photos.

When I check Settings > General > Usage > Manage Storage, it shows "photos" take 6 GB on my phone.

I need storage & I don't know where the hell these 6 GB came from & I want to get rid of them.