Outstanding, OP, well done!!
My sister & I have just emptied mum's house, she's gone into residential care.
I see a lot of people recommend BHF for collecting furniture. We found them useless. If furniture doesn't have fire retardent labels on, don't bother. If furniture is mahogany, don't bother. If a bed isn't pristine - and with labels - (mum's luckily was) don't bother. A full wall of wardrobes - three that were meant to stand together - nope, didn't want those either.
The wardrobes are still in the house, we had to chop good solid mahogany furniture up as BHF assumed it was veneered when it wasn't.
No one on the local FB page wanted it but all recommended BHF to collect (screams at this point)
I don't have transport so couldn't possibly be back & forth if I advertised everything. It's not the kind of area where you could leave things out for folk to help themselves (mainly oldies).
I've used FB marketplace before for my own things. People don't bother coming, or want it delivering, despite saying NO DELIVERY in the ads..
We tried to book a skip but the business said well you can't put A, B & C into it.. it was all a complete NIGHTMARE. Got one eventually that wasn't so picky but it wasn't as big as we'd have liked, hence chopping everything up. I would have LOVED the furniture (they were good, if dated, pieces) to go to women setting up on their own after being in refuges or something, but how to GET to these people? It's such a shame. :-(
I was luckier with some things - I got in touch with a lady who collects towels, bedding etc (just not duvets & pillows) for cats & dogs in shelters. They took about ten or more black sacks full of goods, bless them!
Also the local hospice charity shop - they took LOADS. :-) Do check on their website, though, ours only accepted donations on two days a week. Also if you have suitcases, don't donate those until last, ferry ornaments, clothes etc IN them back & forth to the charity shop!
Summing up - get rid of as much as possible on each occasion. Don't advertise one thing & wait for someone who may or may not show up. It's demoralising. Don't try & sell odd bits & bobs on Music Magpie, ebay & the like, you get almost nothing back & it all takes forever. That's my experience. Good luck!