Playpennies

There's a 20% off sale on schoolwear on Marks and Spencer's website at the moment. With this Marks and Spencers promotional code you can get another 10% off. This actually adds up to 30% off in total. Both the 20% and the 10% comes off the original price (you'll see what I mean below).

Click here to use your Marks and Spencer promotional code

• Discount: 10%
• Applies to: schoolwear
• Promotional code: MSJUNE10
• Expires: unknown

Unfortunately I don't know how long this code will last. I assume it will work as long as the sale is on, and according to the website, this is for a limited time. Helpful. To use the code, you need to go through checkout. There  are two opportunities to enter a promotional code before you confirm your order. Once entered it will appear automatically on your order if it is accepted.

I tested it out on a pair of slim fit school trousers. These were priced at £13. The code took £2.60 off for the 20% sale, and £1.30 for my 10% discount. With the £3.50 delivery cost (this is more cost effective if you buy more than one item) the total came to £12.60.

Thanks to cheriecollins at HUKD!