My electric shaver has become blunt. And it's running roughly. Bottom line - I'm not finding it easy to shave with it. So ...
You might think that it would be cheapest and easiest to replace the shaving head, and maybe the foil. But that isn't the case; typically, you'll pay £25 to replace those. But a new shaver is a lot cheaper.
I've had a good experience with the Chaobo RSCW-9500, which I got from DealExtreme for about £9. Yes, three of these are cheaper than one replacement head and foil for a big name brand shaver! So I've changed over to my backup 9500, and I went back to DX to buy another. Sold out! Which means they don't stock it any more. So I googled around; Amazon.com used to sell them, but no longer. I persisted until I found Focalprice. They have the 9500 for $12, three for $11.34 each. So I bought three for $34.02, which is about what you'd pay for a single replacement head and foil for a big brand. And each one comes with a spare head!