Which mutli-tool would you recommend that you can carry on a keychain? I'm looking for something that has a decent blade, pliers and screwdriver.

I was hoping to get some feedback on this.

I think your best option might be the Leatherman Squirt:

http://www.leatherman.com/product/Squirt_P4

The Leatherman Squirt P4 is the first miniature pliers multi-tool tough enough to be a Leatherman. Attach the spring-action Squirt P4 to your key ring or backpack; with three screwdrivers, wire cutters, a knife blade and more, it keeps your on-the-go life going. The Squirt P4 is tiny, tough and 100% Leatherman.

Tools:

* 420HC Clip Point Knife
* Spring-action Needlenose pliers
* Regular Pliers
* Wire Cutters
* Extra-small Screwdriver
* Medium Screwdriver
* Flat Phillips Screwdriver
* Wood/Metal File
* Bottle Opener
* Awl

Features:

* Stainless Steel with Anodized Aluminum Handle Scales
* Stainless Steel Body
* Outside-accessible Tools
* Key Ring Attachment
* Available Colors: "Inferno" Red, "Storm" Gray, "Powder" Pink, and "Glacier" Blue
* Sleeve Sold Separately
* 25-year Warranty

Measurements:

* 2.25 in | 5.75 cm (closed)
* 2 oz | 57 g
* 1.6 in | 4.06 cm (blade length)

The Leatherman Squirt is a nice keyring option. I have one for just that purpose. I won't really take the place of a quality folding knife (or even a larger tool like the Leatherman Wave), but for it's size it is very durable and convenient especially since I don't carry my Wave on a daily basis.

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If it's in your pack, but you don't know how to use it...it's useless. So, always test your skills as a form of preparation...Don't wait until your life depends on it. That's a lesson you don't want to learn the hard way.

Those are excellent suggestions. I was already leaning towards Leatherman, and I ended up getting the Leatherman Squirt PS4, which is like the Squirt P4, but with scissors. It's Leatherman's smallest multi-tool that has a knife blade, pliers and scissors, and fits perfectly on a keychain.