Another tuner. Either a Snark 2 or one of Planet Waves small ones (depending on the thickness of the head on your uke - on some thinner headstocks I found that the PW didn't clamp down enough. It is very small & stays out of the way though.) I might also buy some sets of strings, you can always use those.
Is it burning a hole in your pocket? If not, I'd say just keep the credit on your Amazon account until there's something you really need or want. You can buy just about anything there these days.
Of course, spare strings or an extra tuner are always good things to have on hand.
I have like a $400 amazon credit that I'm wondering what to spend on uke stuff with! I wish it was paypal so I could get a save up a bit more and get a used kamaka pineapple on ebay.
But that's nothing you can't fix with a tiny patch of cardboard or similar...
If I had that credit I would indeed get one of the Planet Waves Mini Tuners for my latest acquisition - I find it quite useful to have a tuner on every uke...
Not many folks have heard of it but it has some real gems by various ukulele players--including Jeff Peterson, Taimane Gardner, Bryan Tolentino, Bryan Kessler and Ben Vegas. At $8.99 it's a steal! And I'd have $1.01 left over for Daniel Ho's "Pineapple Mango" http://www.amazon.com/Pineapple-Man...sr_1_1?ie=UTF8&qid=1380401273&s=dmusic&sr=1-1. That song just makes me smile no matter how many times I hear it.
I have like a $400 amazon credit that I'm wondering what to spend on uke stuff with! I wish it was paypal so I could get a save up a bit more and get a used kamaka pineapple on ebay.
That's another good idea....
Why not buy "Ukuleighties" by a US/German duo - quite funny to listen to all these eighties songs brought down to a basic uke+voice arrangement.
(Link above pointing to amazon.de, here's amazon.com)