I tried searching on this, but couldn't find anything - even in shaveblog.com. So, for what it's worth, here's one article.
I've used Edge Gel for some time. During that time it seemed my disposable razor lifespan was reduced, but I didn't make the connection. Recently they increased the 'Aloe' component and my razor lifespan dropped down to a few days; I assume the shorter lifespan is related to the Aloe.
Then I found using plain soap (not too elegant :-), or cleaning the gunky gel from the razor with a toothpick, significantly increased razor lifespan.
Edge is made by Energizer Holdings, who also sell Schick and Wilkinson razors. So they don't have much incentive to increase razor lifespan. I suspect most customers don't care either way, but it will be interesting to see if I get any comments on this blog post. (I expect Gel's SEO operatives to bury it pretty deeply though :-).
For my part I'm going to go back to a brush and Williams Mug Shaving Soap. They seemed to be disappearing years ago, but I gather they're fashionable now. I expect that will save me enough to buy a coffee or two, and cut my waste output a bit.
PS. Researching this topic led me to a Wirecutter article on The Best Razors. I don't have the patience to do the Merkur thing, and I'm too cheap for the Gillette ProGlide, so I think I'll stick with the cheap Bic dual blades.