I've recently taken up the hobby of lockpicking. I've ordered a set yesterday, so they should arrive in the next couple weeks. I'm sure these will be much easier than a paperclip and a screwdriver. Here's a mini guide who those curious one.
Anyway, I found that either two paperclips or a paperclip + flathead screwdriver work as a makeshift lockpick set. Bend the paper clip straight out, but leaving one end bend to have some kind of leverage. Bend the tip of the paperclip to a 20-35 degree angle. That's the pick.
I've also made a rake, by bending a paperclip in a mountain-valley formation.
As for a tension wrench, a flathead screw driver or another paperclip works. Simply bend the paperclip at a 90 degree angle so you have an L shape. It also depends on the size of the key hole and how much room you have to work with. There are numerous ways to bend a paperclip to work as a tool (in this fashion), so use what works for you.
Now, to pick it.