Ex Wife Paperwork

[Biker 1]

My divorce was finalised a few months back - ex moved out & took most of her stuff, but has left several files of credit/store card statements, tax documents, payslips etc. I contacted her a couple of weeks back asking that she picked it up, but no reply. I am loath to just dump it all, but CBA to keep chasing.
So the question is: do I have any legal obligation to hang on to this stuff until she finally picks it up, or can I just chuck it in the bin?? The alternative is to box it up & dump it next to her front door, but this would probably be like stirring up a hornets' nest.........

[Biker 1]

I don't want to spend any more £££ on this crap, so not keen on the postal option! I just wondered if there are legal implications if I disposed of it all, as documents include tax returns, P60s, etc.

[Biker 1]

Thanks for all the advice!
Sadly I don't have a loft - stuff is all in spare room, including various knick-knacks & other assorted personal st items.
I think I'll leave it all on the back burner for a couple of months, as I CBA with all the potential screeching & 'you've lost st/broken stuff on purpose!!!!' blah blah blah, nag nag nag....