Hi Oscar we haven't abandoned you.
I will try to explain further what I was banging on about.
Firstly you might like to know that mathematicians and physicists have a slightly different definition of vector. Unfortunately biologists and computer scientists have yet other ones.
Anyway mathematicians say that vectors are the inhabitants of a vector space. That is they are objects that obey certain well specified rules or axioms. Mathematical vectors include the objects you and physicists call vectors as a special case and call them cartesian vectors, or sometimes line vectors, because they are referred to the normal x,y and possibly z axes. These are the ones we are dealing with here.
You might be suprised at some of the other objects that mathematicians call vectors. Not all of these have a process of multiplication so do not support a vector product.
However there are some useful properties, fundamental to all vectors.
A vector space is a collection of all vectors of a particular type.
Let us look at my attached diagram of a plane. This is a vector space. I have drawn 3 vectors, A, B and C.
Now first consider C. As I rotate it about the origin I can align it with A or B and by stretching it I can make it as long or short as I like.
In other words I can make it into any vector in the plane.
Now look at A and B.
The dashed lines look a bit like resolution into components, but the resolved parts are shorter than either A or B.
No matter I can fix this by multiplying A and B by a factor or number as I have shown in the equation underneath.
However I have turned it round and not shown it as a decomposition, rather an assembly so that
\alpha A + \beta B = C
In other words if I add the alpha times A to beta times B I will get another vector, C.
Since, as noted earlier, C can represent any vector in the plane I can represent any vector in the plane in this way.
The point of all this (which I won't prove) is that every vector that can be obtained from adding some portion of A to some portion of B is in the plane and that all vectors in the plane can be obtained this way.
Mathematically we have our vectors in our vector space (the plane) and an operation (addition). We say that the space is 'closed under addition'. Which means that adding any two members of the space will always yield a third member of the space, and that all members of the space can be accessed this way.
I can state, without proof, that A and B do not have to be at right angles for the above to be true. So long as they are not parallel we can pick any two vectors and the above will still be true.
This is known as generalisation, something mathematicians do all the time.
OK so we have a space and an operation that can get us any of the vectors in the space, but planes are 2 dimensional and exist in 3D space.
We can't use our addition operation to access any vectors that extend into the 3rd dimension, or to link these with those in our plane. This is clearly unsatisfactory.
Enter the cross product, designed specially for this purpose. You will find that the triple products you have commenced studing further extend the relationships between line vectors in 3D.
This is why they are so useful in Physics. I would recommend accepting that they are designed for this purpose (they would be pretty useless if they weren't) and just use them for the time being.