Ages ago on mumsnet I read about Graze and I have only just tried it!
They send you a selection box of 4 different healthy snacks by post every week for £2.99. You can get them delivered directly to your work if that suits you.
I signed up on a first box free, second box half price offer and had my first box this week. It contained some mixed nuts and seeds, 2 different selections of dried fruit and intriguingly "Wasapeas" which I think are dried peas with hot horseradishy flavour???? Anyway these were a huge hit in my office. The standard box of four snacks are more than you would eat on one day, I would say you would want one or two of them a day. All my colleagues have signed up for a free trial and I am quite excited to see what comes in their boxes!
You get to choose from around 200 snacks which ones you like/ dislike then they send you a random 4 in your box each week.
If you would like to use my code for a free first box and half price second box it is RLBJJHTB. You can cancel at any time.