The only problem with card cutters (I've experienced this first hand with an iPhone 4S), is that when the card is cut, all is nice and dandy. Once you try to remove that card, that's when "tough luck" sets in - I actually had to go to an Apple store, feeling like a total idiot, because I had a cut sim stuck inside my phone, from one of my trips.

I've seen this neatly addressed at a cellphone store in DOK - they offered to cut, and also to sand/slim down properly the prepaid sim, that they sold me - this came with a promise, that if it gets stuck, it's their responsibility to remove, or give me a new phone (they actually had unlocked 4S in stock, so it was semi-believable). At any rate, the guy who cut the sim spent some time with a hobby knife perfecting and shaving that sim, put it in, and then took it out - I've used it on 3 trips now.

I have a card cutter for micro, but I'm not touching it anymore.

If anything, I'd rather get a local store to do the cutting to micro or nano, and show me, that it comes out