Go to  Pictures  in the left column 

Click on create a new album

name it

describe it

Save

Then GOTO ADD photos..find where you saved yours and click on

SAVE STORAGE SPACE

By creating your own album with siggies saved within it, it won't matter how many times you use the siggies over and over the space will remain the same. If you leave it and do nothing allowing your storage to keep increasing, you will run out of space.