I’m trying to move in that direction but still struggling in places.
Crackers: have been homemade for years, with recycled cracker junk. The dc love the tat so I’ve just bagged up the discarded bits each year to re use. Also add a lottery tickets for adults and sweets for all.
Dinner is relatively good. At this stage I’m not intimidated by the “big roast” and feel the need for disposable trays etc. my ordinary shopping is largely plastic free. But I like to buy some of the side dishes and they all come in plastic or in foil trays sealed with plastic.
Wrapping: I like brightly coloured wrapping. I tried the brown paper trend one year but found it a bit dull. Now I avoid glittery, thick and embossed paper and stick to recyclable paper. I’ve been looking for plain or festive paper tape but most of that comes in plastic packaging 
Adult gifts: for the last couple of years I’ve been sticking to gifts that are actually wanted and will be used. Absolutely no gag gifts. I don’t gift plastic but it’s tricky to avoid plastic packaging. I was really pleased to find turtle doves and the ethical silk company used responsible packaging but there’s only so many gifts of gloves and pillowcases I can give. I’d love to hear other company recommendations. I’m thinking of focusing on books this year as these are plastic free at point of purchase.
The dc toys are my biggest downfall. I try to steer clear of excess plastic. They’re old enough to be concerned about climate change but still young enough to be drawn into stupid trends. LOL balls are horrific! I held the line on those and when dd’s birthday came round she got a gift of one from nearly everyone of her friends who felt so sorry for her 
I compromise on good quality plastic toys with resale value because they will get re used - lego, OG dolls.
It was easier when they were younger and there were lovely wooden toys, organic cotton and wool rag dolls, etc.
And again, even when I choose stocking fillers like notebooks, pencils and chocolate, there’s the issue of plastic packaging again.
The dc have always made gifts for family members. Most years it’s baking of some sort. We tried growing hyacinths one year but they didn’t bloom.