I think I must be in a little world of my own. I see things online but never buy because I don't know how low the scoop/v is, how tight the fit is of how the fabric feels.
I'd LOVE o by online but I simply don't know how I could. Just read a thread about someone buying jeans online from Hobbs and I'm in awe - I tried fifteen pairs of jean on before I bought any and even then the buggers grew after wearing!!
Even picking up a teeshirt in M&S's requires me to take both a 10 and a 12 to get the right fit 
Is it maybe because my style is 'neat'?