@syklemil @fossheim Yeah, for smaller sized stuff you can donate it at many of the local "gjenvinningsstasjon", and for bigger stuff you can donate at a bigger "gjenvinningsstasjon". Hehe. You'll find a list here: https://www.oslo.kommune.no/avfall-og-gjenvinning/alle-gjenvinningsstasjoner/ Click on them to check if they take donations, most do but not all I think.
Otherwise I love when people just put stuff out and write a note to say "free". Some people do that and also post about it on Finn – then you won't have to make appointments.