10 minutes of time for $10 to use on Amazon. Sign up to Amazon Music's free 30 day trial for a free $10 promotional code (expires 10/31, can cancel right after). Easy peasy. As for some ideas you can get a Sandisk SD card, Reflector, or Eneloop batteries (for flash).
- Go to http://amzn.to/2xFWoK0
- Enter Code MUSIC1
- Click the link to sign up to Amazon Music
- You can cancel the trial at https://www.amazon.com/music/settings (so you don't get charged)
Once you sign up with the code you'll get a free 30 day trial of Amazon Music and the $10 promo code will be good in your account until 10/31. The $10 is good for anything sold by Amazon.com but it won't work on 3rd party sellers.