Aside from geocaching, I've many hobbies and interests and one of them just so happens to be science, or rather the science of time travel.
In 2006, I bought a mint 1981 DeLorean DMC-12. When I say mint, the bodywork was 100% mint but mechanically, it wasn't so mint, maybe around 47.52% mint and electrically, it was shocking. Well actually no, cancel that, it didn't have the power to shock anything, it was dead, around 110% dead. So yeah, I guess you could say it needed a lot of work.
But, from 2006 to 2014, I spent many hours labouring over my new found love. How many hours? Come on, I'm a nerd, I keep track of these things! I spent a total of 3,276 hours and 15 minutes working on this baby. How much money did I spent restoring this beauty to its original, if not better condition? Errr, lots and lots! I do have an exact figure, but it's not the figure I tell mrs_sgtzara it cost so I'll say now't more about that.

So what modifications did I make during those 8 years? Quite a few, but the most important and most expensive was the addition of a fully functional Flux Capacitor.
13th February 2014 was the date I took the DeLorean DMC-12 to a private track to test the Flux Capacitor and see if it really was possible to travel through time. To cut a long story short, I set my target date of 13th February 2020, accelerated to 88mph and what do you know, it worked! It absolutely worked!
I took a photo of my watch when I was travelling through time, but for some reason, it came out a bit funny, as you can see below.

Anyhow, before you ask, yes I did take a cache with me to the future and I did place it when I was there.
I typed up part of the listing for the cache on my laptop when I was there too. I'm not sure how it happened, I can only assume when I was travelling back through time to 13th February 2014 again that it somehow got corrupted but since it might be important, I'll include the corrupted text below.
xfi. sf;; tdaf udh vfmmcav mxcr ugh/ rcajf c bfm idw#hf sgamcav md zads sxfhf mxf jgjxf cr. w#;; mf;; idw/ md ucat mxf jgjxf. vd md adhmx ucumi udwh tfvhffr/ c#, sguu;cav da [wh[drf ads md jhfgmf g vg[ bwm gumfh mxgm gtt g r[gjf mxfa mxchmi udwh tdm rcq xwathft gat acafmi mxhff/ udh mxf sfrmcav. vd md tdwb;f d ucpf tfvhffr/ gadmxfh [dcam;frr sdht carfhmft xfhf mxfa udhmi daf r[gjf fcvxm xwathft gat acafmi udwh/ idwh xcam sxfa idw vfm mxfhf cr mxcr. cm cr g ,gvafmcj agad/ jxddrf idwh mc,cav scrf;fi gat vddt ;wjz
So there you go, you know I obviously got back safe and sound but I wonder if you can find a cache that was placed in the future?
Good luck!