*Gasps* Vectors are your friend!!

Please explain?

I know of two types of vectors:

1) directed quantity, which I've never heard of being used for this but that would be a neat trick;

2) resizable arrays, which I've heard take up a lot of memory, and would seem to me to be unnecessary when dealing with values that will stay the same forever.

My reasoning for having a lot of positioning variables is so that I can easily change them in the future. It's very likely that I'll want to change things in the next few days, including, for instance, the size of every GUI element. If there's a better way to deal with relative-position UI drawing and interaction, I'd love to know what it is!

My head hurts, thats what we think... in fact it might just explode..