Bali has become pretty much self-sufficient in providing all amenities whilst also being an island in a developing country.
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Some things, however, come at a surprising cost. We've noted some things that you may feel more comfortable bringing from home.

• Festival bits and bobs. Like to dress up? Want to bring eco-glitter decor? Instead of spending days looking for your tailored needs, consider bringing niche items along with you.
• Tampons. Some personal care products are more economically efficient. Contact lenses are another high price item in Bali.
• Quality toiletries such as shampoo and conditioner, of course, the mini-markets and supermarkets are fully stocked with regular branded toiletries, however, if you like specific sulfate-free goodies, please bring them with you!
• Coral-friendly sunscreen and tanning oil.
• Specific homey snacks. Hobnobs anyone?
• For an island with quite a choice of speakeasies alcohol can be surprisingly expensive. Bali does have its own special palm home-brew though, called Arak. So if you’re one for pre-drinks maybe grab a bottle at the duty-free.