I agree with giving stamps and thank you cards, that is a great one. Also toliet paper, because a good friend had a family member die and with the influx of relatives they ran low so I took some over along with the paper plates, napkins and paper towels, those things are always needed. I also think that finger food goes over well, hence the donut holes going quickly and the donuts not. Anything that can be popped into your mouth goes fast.
Also think of family a few weeks, months after the funeral and everyone has gone back home and on with their life...still offer to bring over a meal one day or stop by and take them out for a meal or have them over for a meal, loneliness creeps in especially now at the holidays so think of those who have lost loved ones in the last year and recheck in on them. Just my .02
betty