Best investment in the high street

Aceace

Yes PBs look favourite. If that's too much hassle, since you're already with Nationwide it might be worth putting £10k (the max allowed) in their Mutual Reward Bond. It pays 0.5% plus a possible lottery prize. Cash is tied up for 18 months, but can close the account in an emergency for a fee of 180 days interest, which would be small beer.

Retireby40

Your probably going to live about another 10 years. Spend the money and enjoy life. You cant take it with you. And while you can leave it to someone else that's no fun!!!!