Well... I would suggest you to try to get a neater back on your work. I have been cross stitching for almost 13 years and developed my own technique. I just looove to cross stitch tea towels. They come with an aida band on and all I need to do is grab a needle and floss and... ta da! No hoop needed! Take a look at a b-day gift I offered to a Portuguese friend of mine:
I can teach you... Its quite simple!
For the pieces you have already stitched, I would suggest you to Google for finishings... There are such neat ideas out there! I suggest you to take a look here:
Hugs from sunny Brazil!