This is more or less the one I have that I carry with me always. You can get a manbag to put it in along with your other dainties. I use the knife all the time. Occasionally the corkscrew or bottle opener or tweezers or toothpicks. The other items are hard to open out. I really miss it when I travel and don't take it in my carry on -- although quite a few times I forget that I have it and it seems to go through the scanners anyway - but there's always the danger of having it confiscated. If you have something like this, the uses are obvious and frequent.
Pretty much your standard sak, and I'm glad to hear you do feel its usefullness. I guess I was asking for specific models peoppe have tried out and how they feel about it so I could compare, but this thread turned into an advertusement for Leatherman:D Thanks for your review! perhaps the slightly bigger models will be easier to get a grip on the tools to slip open. I also haven't even gone to a store to try 'em yet, which I probably should.