I used to get a rash with Gillette Machs and it didn't disappear until I got a merkur and proper shaving kit. It also gives you a much better shave, your skin feels better and even a blunt blade with 8 uses is still FAR FAR sharper than a brand new Gillette Mach 42 blade head will EVER be! Going back to a Gillette was horrible and it felt like it was tearing teh heairs from my face. Never again!
Try doing the sums yourself, it's not some jokey amount of decades where you save money, you'll be in profit with a number of months compared to that Gilette Mach 5 pish!
I still have about 70% of my shaving soap and a number of blades left after I spent ~£65 on a complete shaving starter kit back in September (inc an extra x10 lovely Feather blades and Taylor of Bond Strt balm). Do the maths on your blades and other consumables in that period and you will have spent an awful lot more than I have.
I'll be able to make the blades last up to the 1 year mark since I bought them (x20), meaning each blade gets 18.25 days of use. I shave every 3 days in general which means each blade last me 6 shaves over tha 18 day period. An absolute bargain and it means you can have a nice brush, lovely soap and some good aftershave balm (still on my first tube too).
Buy this asap and don't buy any more Gilette blades again. Use up the rest of your aftershave balm until finished, then you'll have the nice one in the kit below to last you a while. Example of a kit below, just add extra feather blades x10 and either use your normal balm or pickup something nicer from their shop:
http://www.traditionalshaving.co.uk...ving/_STA-CRE-LUX/268168/Luxury-Shaving-Cream