I was just signing my TCs when I noticed there is a space to put the date. (AMEX TCs)
The date is next to the first signing box but I'm not sure whether you have to put the date you originally signed the TC or the date when you spend them?
i have just taken possesion of my travellers cheques today and was told not to date them yet as these will be valid for life without a date, but if you date them will only be valid for 6 months from that date.