Measurement standards differ. 3 oz vs 100ml, 100ml is 3.38 oz and some of the US tubes will round up to 3.4oz. 3.4 oz is the official standard https://www.tsa.gov/blog/2009/02/25/...-oz-what-gives Most agents are ok with either measurement system now and it helps if the container has a the size marked on it. It also means that the container itself, not matter how full it is, must be 100ml or less. You can't take a half empty 6oz tube of toothpaste or sunblock in your international/US domestic carry-on.

I've never had an agent question chapstick or deodorant in my solids bag. The solid does conform to the container but unless it gets excessively warm for a long duration, it'll stay solid. Wipes seem to be ok outside the liquids bag. If you have a lot of powder flying inbound to US, it would be a solid but should also be checked if > 12 oz. https://www.tsa.gov/travel/frequentl...e-they-allowed I sometimes take powdered sports drink mix when traveling to hot climates.

I usually ponder over liquids the longest when I bring food which has salad dressing, dips, or other condiments. Most TSA agents seem ok with a lunch bag in addition to personal item & carry-on (some used to check item count and size like they were given airline kickbacks on ancillary fees) without large amounts of liquid or sauce. A few ULCC's in SE Asia also don't allow you to BYO food for consumption onboard. I've also had drinks purchased post-security confiscated before boarding at a few international airports.

ETA: Coconut oil, other than its quasi liquid/solid state, is also a food and should be declared upon entry to countries with strict agriculture rules like AU & NZ. Some people use it to remove makeup or as a moisturizer.