How to fix a slippy zipper?

[Rainbow Brite]

See I have this pair of jeans that I love...but the dang zipper won't stay up! Is there any way to fix that or am I going to just have to get rid of the jeans?

[SerendipityCrafts]

Yep .... kind of hard to explain without visuals but I'll try ....

The zipper mechanism looks kind of like an upside down triangle ....

http://www1.istockphoto.com/file_thumbview_approve/613827/2/istockphoto_613827_zipper_jeans_close_up.jpg

If you have a small pointy hammer, tap on either side of the pull, ie - on the triangle corners. If you don't have a small pointy hammer, use a pair of needle nose plyers and pinch those same areas.

Not too much though or you might not get yourself out of those jeans :)

[Measha]

I've also heard that hairspray on the zipper can help. This of course...could be an old wives' tale.