If you are anything like me, and have fair number of posters, you undoubtly have asked yourself 'what is the best way to put posters on the wall?'

I have used thumbtacks... but I'm too anal-retentive to tolerate the hole in my posters.
Then I moved on to sticky tacks... but they tend to fall off and leave oil stains on my posters. Still intolerable.
I settled with poster hanger for awhile now.They seem to work fine.. but I found out they also leaves marks where hanger was clamping on the posters and hard to keep still. Whenever I fluffed my blanket or jumped onto my bed, they moved around and, sometimes, fall.

So as I was contemplating possible solution for my dillema, I came up with an idea: Magnetic Poster Holder.

You don't really need anything complicated to 'make' magnetic poster holder.
You need
1. Thumbtack
No push-pin will not work. It needs to be flat head, metal thumbtack.
The picture shown is somewhat round headed.. I just couldn't find flat head one but I presume flat head will work better.

2. Magnet
Any magnets strong enough to hold poster will work. I found these magnets at Walmart. Yes, these are probably more expensive than regular disk magnets, but they will be easier to take off.

3. Poster of your liking.

Step 1: Put on Thumbtacks

First you need to put thumbtacks on your wall.
Make sure they are positioned such that they will be located on the corners of your poster

Step 2: Put on Magnets

Once you put thumbtacks on your wall, carefully position your posters above the thumbtacks, and use magnet to hold the posters.

Step 3: Voila You Have Magnetic Poster Holder

Once you put on magnet on all four corners, all you have left to do is to sit back and enjoy your posters.

The magnets I tried held conventional size posters without any problem.
If you have specifically large posters, or if you want to expand this idea to some other wall hangings, I recommend using more than just four magnets.