I get the convenience of an electric, but I tried three different ones, all of which gave pretty bad in-growing hairs. Not cool.
Straight razor holder, disposable blades off amazon, soap bowl at 1.75 from the local supermarket. Cost me about 45 bucks for the last five years of shaving. Regular soap will do if you're really pushing the savings. I guess a stropped razor will eventually be cheaper, but the 20 minutes a week are definitely at a premium in my life right now!
Upsides: quality of shave second to none, feeling of "manliness", price, no charging needed, compact.
Downsides: can't shave in the shower without looking, can't shave at the wheel like some crazy people, can't fly with shaving kit in hand luggage any more, takes slightly longer than electric (but not much, once you have the hang of it). Shaving with a shop-bought blade once you've flown somewhere feels terrible.