Almost spent $30 on Pixelmator when a highschooler of mine told me about Pixlr. Great webapp for photo editing.
My favorite/most used tool: the magic wand + delete button to make sections of my images transparent.
You can set Google to notify you when a form has been submitted, but you only get a link to the update spreadsheet in Google Drive. This script takes all of the submitted data, arranges it the way you want in a document and sends a PDF to the email you designate. I left out the final step in his code, which deletes the temporary file. Now, I also have an archived Google doc of each submitted form! Now, we don't have to manually create a separate mail merge after all of the registrations have been received.