I got myself a Panasonic wet-dry rechargeable shaver 2 years ago ($75), and I haven't looked back. I am a flight attendant so I travel often, so I use free hotel conditioner or body lotion, and sometimes I massage my beard with a few drops of almond oil on my wet hands before shaving, but it works great on a dry face. For my hair, or lack thereof (I am completely bald), I use this shaver as well when I want a baby skin look, about once a month. Other than that, once or twice a week, I use a cheap electric hair clipper ($20) which doesn't shave right to the skin but pretty close. With regular cleaning and oiling, I expect both shavers to last about 5 years. Overall, my cost, amortized over 5 years, will be $20 a year. Not free, but pretty low compared to those expensive cartridges. I am even so cheap that I bring all my rechargeable appliances on my travels and recharge them at my hotel.