You plan to do exactly the same as me.
My PhoneDevil protectors (front and back) arrived today in the post (with 2 chewy sweets
😛) and I will be putting them on my new 4s.
I have also reserved these at my local argos store:
http://www.argos.co.uk/static/Product/partNumber/5240793/Trail/searchtext>SOCK.htm
I will be keeping one everywhere - car, work, home etc so there is always one for it to sit on / in
😉
And bargain at that price for 6!
I don't want a case on my 4s. Have one on my white 4 - and it has done a good job of protecting it, but I don't think this phone looks nice with a case on it! Yes, I may drop it, but I plan to always have it in a sock and the phonedevil protection will give me peace of mind if it comes into contact with a hard surface (lay on desk etc).
You should do this too!