I've been DE shaving after returning to wet shaving from electric a few months ago. Although my DE technique has been slowing improving I'm really not a morning person and find I take a long time to get the prep, shave and 'clean-up' right and thought I'd try a cartridge to see if it would speed (some of) the process up a bit. I'd read good things about the Gillette Sensor Excel cartridge on this Forum so scored a new one off ebay and - lo and behold - have found it gives a damn good shave in a shorter time. Same prep but the shave time is reduced and - yes - it's just all a bit easier (go ahead - shoot me). So, the question is, where is the best place to score the best replacement blades for it at the most reasonable price? Thanks.