@ButchBitchPriscilla,
Obviously, your "friends" don't plan, they go with the flow, "oh I know let's catch up with, see what they are doing"... I think a day ahead at least, allows you to deside what you want to do. But also, why not go with the flow once in a blue moon yourselves, you can always re-heat the dinner, for a night out of difference, and hopefully fun.
It's nice to know you're thought of though huh....