Just need it to stay on throughout the day without it rubbing on my clothes.
I put foundation on my neck too because I have very uneven skin and it goes on the neck of my polo and my polo's white so what the heck do I do?

You can buy creams and such for tanning without going to a salon, maybe use some of the lotion because it will absorb into your skin, leaving no residue to end up on your clothing..

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The smallest man can climb the tallest mountain, all he has to do is try.

Mac do a product called Fix+ which is supposed to stop makeup rubbing off. I have some - it cost £20 - and it's decent, but hairspray does the job just as well. Not sure if it will stop it rubbing off on clothes though

Foundation isn't meant for neck skin, obviously it's not going to stay on.