Hello Jim,
I have a 7 day Pill Box (which I fill on Saturday night) AND a chart, actually a data sheet, numbered 1 to 31 for each day of the month, with headings for each of my medications, vitamins, exercise, and symptoms...and I still missed 2 doses last year which I caught the following morning.
Someone came up with a suggestion that I like for missed doses and that is to divide your missed dose by 3, and add that amount to your regular dose for the next 3 days. You can fudge the numbers to come out in 0.5 mg increments as long as the 3 day total increase equals the missed dose.
I like that idea because by the end of the week, your weekly total is the same as if you had not missed the dose and you NEVER double up so you don't swing too wildly while correcting for the missed dose. My Coumadin Clinic Nurse knows this is what I do and has no objections. I believe Al Lodwick also acknowledged it was NOT alarming to him, stopping short of endorsing the idea for everyone.
'AL Capshaw'