If you type "car keys" into the search box at the top of this page, you will find this subject has been discussed countless times.
It's not as if the forum is overrun with novel new questions about running. Assuming your tone is that you don't think the OP should have asked the question - why not just ignore the post? The thread title was clear
To the OP - the search engine on here is crap which is a shame as there's a lot of good content in the archives. If you are trying to search for something, go to Google and do something like this carry keys +site:runnersworld.co.uk
"Assuming your tone is that you don't think the OP should have asked the question" - er, you are criticising a tone you have assumed. You must be a woman?
"If you type "car keys" into the search box at the top of this page, you will find this subject has been discussed countless times." is simply a statement. It doesn't have a tone. Any "tone" is in your head, not in the post.
I don't think the OP shouldn't have asked the question, no. I simply pointed out it has already been answered before in various ways. If the OP doesn't find a solution here (e.g. sticking your keys up your anus may not be their cup of tea) then they could have recourse to the search engine to find other threads where alternative methods of storing/concealing/dealing with, car keys, have been offered, some of them not involving the rectum or any other body orifice.
My present method is to attach them to an MP3 player round my neck. A risk of impalement through the sternum if I fall over, admittedly, but it's a calculated risk and one I am willing to run.