Save on travel packing cubes from Amazon (affiliate links below):
$9.59 for Veken 8 Set Packing Cubes for Suitcases, Travel Bag Organizers for Carry on, Luggage Organizer Bags Set for Travel Essentials Travel Accessories in 4 Sizes (Extra Large, Large, Medium, Small), Black
(YMMV) $8.99 after 40% coupon discount for 8 Set Packing Cubes for Suitcases, kingdalux Travel Luggage Packing Organizers with Laundry Bag, Compression Storage Shoe Bag, Clothing Underwear Bag, for Man & Women
The first deal should work for anyone and has slightly better Amazon ratings. The second one – I’m seeing the $14.99 price with 40% off for a final cost of $8.99, but it might not show that price/coupon for everyone.