We've been doing this for years with a couple minor changes. First, we've always use olive oil which is not only healthier but adds a wonderful flavor. Second, we fold the top of the bag over just once and put one staple in the middle. This allows steam to get out without the top popping open (pun intended). The staple is so small we've never had any problems with sparking or whatever.
I've also experimented with adding in a fresh jalapano pepper or some chopped garlic so it is never blah.
One last thing, get some popcorn salt, it is much finer than table salt and works so much better.
I can't imagine buying MW popcorn with all the additives plus costing $1 per bag or more! Enjoy!!
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