Not sure if this is any use to anyone but me and the wife use this service.
It’s a subscription service for razor blades, it looks like a pack of 4 blades is ~£10. You can buy a 2nd handle, so you and the missus / bf could share the subscription and cut down the cost on blades.
Guess it depends what you actually use, but I thought I would share anyways. In my case, it’s the wifes subscription, she bought me a spare handle and we just share the blades.