Oh gods, there are so many things. I'll go by storyverse.
Lyria Spellspinner/Playground of the Gods storyverse: In Portland's rainy weather, I find myself wishing for one of the hydrophobic cloaks Lyria sells in Vraygrotta during the rainy season. What they are, are cloaks enchanted to repel water. The raindrops hit a pretty solid and invisible force shield a centimeter from the fabric. Wearing one, you will never get wet no matter how torrential the downpour. She also sells hydrophobic boots.
Lyria also has a device that magically loads knowledge and other data into your head instantly. I want one of those. Not sure what I'd want it loaded with, though. Magical knowledge comes to mind, but if that storyverse were true (terrifying prospect, given some of the details) and we're in it, well... Earth is a magical dead zone, has been ever since some epic battle between two groups of Gods. So fat lot of good learning magic would do me here, in that case. (Magic from outside is fine, but if you're born on Earth, you'll be lucky to have much of any magic.) Unless, of course, we're in some alternate Earth where real magic has merely been forgotten. (That storyverse has so goddamn many alternate universes in it...)
And good gods, a sun crystal gun (kinda like a laser pistol, but magic) or a lightning gun like in "Mother." (And I do mean *lightning*) I'd set the lightning gun to "knock out a mofo" (not the actual setting name) and never have to worry about intruders. Heh, "I tried robbing them but I got hit by a bolt of lightning. Next thing I know, I'm in the hospital." :-D Though actually, the lightning gun in "Mother" is rather clumsy, needs to be cranked to recharge. I'd want an automatically-recharging version. The only problem with a lightning gun would be that it makes thunder, too.
One last thing: an Omnitongue amulet. It gives the wearer Omnitongue, or the ability to understand and speak any language at all, instantly. With some effort, you can even get such an amulet to work on animals like cats and dogs.
Mindeodean storyverse: FABBERS. Must have fabbers, they make practically anything. Two of them (in case one breaks down, I can fab spare parts). One of the models that recycles things, too. And a fuckton of element canisters. It'd be well worth the rent for a storage unit.
And that far in the future, Mindeodean has super-efficient solar power things that get as much out of the sun as it is physically possible to get. I want that, so I can patent it. :-D
Also, an invisibility suit. And a working stack farm. No idea where I'd put a stack farm, seeing as the smallest ones are enormous, but given the money I could make patenting the damn thing, I could buy somewhere to put it.
Traipah storyverse: I'd rather go to Traipah and stay there for the rest of my life. But let's see, items from there I want. Hmm... okay, a hyperspace power generator, one of the ones made by the Na'Voom Da. These things come in sizes smaller than human fingernails and would end the planet's energy crisis with just a few hundred worldwide. Only downside would be, it's so far ahead of us technologically that it would take us several thousand years of advancement to even begin to figure out how to take it apart without breaking it, much less reverse engineer the damn thing. I'd say the same is true of most of Na'Voom Da and Vorsht tech.
Ooooh, a Xazian computer! They're alive, and can shapeshift. They're so powerful it would make the world's best supercomputer look like an abacus by comparison. I'd want one loaded with Xazian language and music. Because while Xazians' primary language is chemical signals, their secondary language is a sound-based language no human could ever hope to speak, and is said to be the most beautiful sound in the known universe.
I'd also want medical nanites to bring my weight down to 170, give me a sex change, remove unwanted hair (while bolstering wanted hair), shrinking my stomach, improve my hearing, and give me a "tune up" (clearing out clogged arteries, strengthening weak tissues, making sure muscles stay flexible, destroying damaged or cancerous cells, remove skin tags, etc).
Also, copies of all the most notable texts of the Shao'Bahn Order and the Daan Order. And load my Xazian computer with copies of everything from Traipah's greatest library, the Sahn-Kusahn. Considering they have something like 20-30K years of written history, poetry, stories, etc, that's several fucktons of new writings to own. I'd never get through it in one lifetime. :-) Oh, and an InstaLearn loaded with every Traipahni language up til when the novels take place, and every Earth language up until 2011. I could become a polyglot in just a few weeks!
Oh, I could go on and on about Traipahverse tech I want, but I shall stop.
Crossposted from http://fayanora.dreamwidth.org