Even though you'll be earning a full-time salary, as you'll also be enrolled on a full-time university course you'll still be entitled to sign up to student discount schemes.
Many of these are free to sign up to, and often just require your university email address as verification. See our round up of the top student discounts.
Discounts don't just stop at retailers, students don't need to pay council tax, which can represent a considerable saving. Even if you live with a non-student, savings can still be made. See student council tax rules for full help.
Alternatively, if you're not provided with a university email address and are struggling to apply for any of the schemes above, take a look at the NUS Apprentice Extra card. However, there is a cost (currently £11/year or £19 for two years) so you'll need to weigh up if it's worth paying for.