Seemingly easiest and cheapest way to get the 300 stars:
1- Make a purchase of $8 on a Friday between 11am-12pm using order ahead.
2- Buy a banana on same Friday after 12pm, using order ahead, at a different starbucks store
3- Buy a banana on a Saturday or sunday, at a 3rd unique starbucks store
4- Buy a banana on Monday from any starbucks store.
For about $11, youll receive 322 star points, good for 2.5 free food or drink items from starbucks. Plus 3 bananas and the original $8 purchase of your choice.
Not bad, Starbucks. Not bad. I know there are dietary restrictions for some that make this less appealing, but for those who can eat off the menu where hearty salads are upwards of $8, or get cold pressed juices which are $7 a pop this can be very worthwhile.
Enjoy!