Ugh, I'd never remember how much stuff went for. :P But yes, I just edit the item name and dkp amount.
I spent some time yesterday and built a vbscript that prompts me for today's date and grabs a copy of the quickraid buttons text file and replaces it with that value. Well, it took an hour to write and troubleshoot, I'm sure I'll get that hour back after about a year of raids.