It should not come as a surprise that razor blades cost a lot of money. While the razor itself usually doesn't cost all that much (and in many instances they can be found for free), you still end up paying quite a bit to shave since razor companies work on a similar system as computer printer and ink companies: once you have the razor (printer), you're locked into buying their particular brand of razor blades (ink). With blades on the latest and greatest razors costing a few bucks a piece, shaving can get fairly expensive when these costs are added up over the year.
I came across what could be an interesting little device to drastically cut the cost of shaving if it works as it claims (I haven't tried it yet to to see if it works, but did order one). Called the "Razor Saver" it claims that you can get 75 to 130 shaves per blade and you will use 75% less razor blades during the year. This would be absolutely fantastic since my blades are lucky to last a couple of weeks so even if it only works a fraction of its claim, it still would be a worthwhile investment. All you need to do is "insert a razor head and draw the old blade across the Razor Saver - it will be like new." I assume doing this both cleans and sharpens the blades to extend their life. The cost is $12 which is the same (or less) than many razor refill packs and can be purchased from
Sustainable Village
You can find more hints on extending the life of your razors
here