Any tips?

I have quite a bit of general crap to go, a mattress, a number of wooden items and a piano!!

I could get rid of a fair bit with multiple trips to the tip but would rather just get shot in one go if possible

Looking at skip websites is a nightmare, they just want you to sign up for a quote, and they don't take all items.

Is there a service that will take most stuff?

Does anyone do that on here?