Yours please

A few of ours that have worked:
1/ Sky
Just spoke to the accountant who said to ring up Sky and threaten to leave as they always reduce your monthly bill for 6 months at a time. My package was £19pcm.
Just rang and now get Sky+ with 2 packages for £14pcm, with a one-off reduction to £9.99 next bill, so over 6 months this is £39 I would not have had-towards the Omega.
2/ Water bills
Welsh Water will now let you trial a water meter for up to 12 months and remove it again if you want them to. In our experience, meter saves 20%-so worth a try?
3/ Mobile phone; as per Sky, threaten to leave-we have kept our phones and gone onto "SIM-only" which costs us £45pcm for both of our phones, unlimited call and text.
4/ Insurance premium fees
Save up for any insurance (car/house etc) and pay in one payment to save interest charges and fees
5/ Discount vouchers
Before buying anything always search for the item with "discount voucher" "discount code" plus the title of the item. By searching "Stena discount code", we saved £40 on Stena Line Ferries with an Axa insurance offer; no-one ever checks your eligilbility. We got a new Beko washing machine delivered for £129 and new tomtom for £89 a while back. Always worth a few minutes.
We have hundreds of these as we live on the furry bits that fall off the shoestring

What are your best money saving tips?
Anything (legal!) that can help others?