I want more storage space on my iPhone?

I bought more storage to put my documents and photos and notes, etc. On iCloud from my iPhone. But I don't know how to save them to it. How do I do that? And after I do, how would I be able to get them back in order for me to see them again?

What this is. Some sort of bug. Seems like where getting infested with them?

I know is not very good picture but they are really tiny and that's the best shot I could get with the telephoto lens on my iPhone. It is in water just so I could keep it still enough to take a picture. We keep finding loads of them. This evening I have discovered they are coming from our loft. I haven't gone up there yet as I would rather find out what I'm dealing with before just going up there. Also if you know what they are. What's the best way of getting rid of them. Thanks all. What this is. Some sort of bug. Seems like where getting infested with them

What's 'other' in my storage?

I know clearing your cached messages and Safari data are part of Other. But that doesn't help me at all. I have a 16GB iPhone and an uneccessarily large amount of the storage is used by 'Other' data. I barely have anything else on this phone. Nobody else has solutions that will suit me. I can't even delete anything else or anything. I've been struggling for so long so if someone could help me out I would love you forever.

If I take out my SIM card during iPhone restore will it keep all my data?

My iPhone got disabled to the point of the "connect to iTunes screen" and I was just wondering- if I take out my SIM card and do the full restore of the phone without the SIM sim in it, can I plug the card back in once the restoring is done and have all my data as before? Pictures, contacts, apps, messages, etc?