1. Milk
1.1. 6 Simple machines
1.1.1. Saves bottle waste
1.1.2. Saves time in service
1.1.3. Is simple and easy to use
1.1.4. Capable of having many variants
1.1.5. Requires a pump
1.1.6. Requires cleaning
1.1.7. Is complex / expensive
1.1.8. Can't see how much milk is left easily
1.2. Procal milk bags
1.2.1. Large capacity (10L) eliminates bottles
1.2.2. Cheap to make
1.2.3. Easy to recycle
1.2.4. Effective valve
1.2.5. Can be used for other liquids
1.2.6. Difficult to handle
1.2.7. Difficult to store
1.2.8. Easy to break / pierce
2. Detergents
2.1. Honest to Goodness
2.2. Hands free soap dispenser
3. Postmix syrups
3.1. Soft drink fountains
3.1.1. Mixes liquids with gases
3.1.2. Capable of having many variants
3.1.3. Requires a pump
3.1.4. The more varieties, the more complexity
4. Flammable liquids (eg: Fuel / Petrol)
4.1. Petrol Tanker
4.1.1. Needs in line pump to transport the fuel
4.1.2. Free surface effect: Fuel sloshes around an empty vessel
4.1.3. Any air contact creates flammable vapours
4.2. Car fuel tank
4.2.1. Free Surface Effect: Fuel sloshes around in an empty vessel
4.2.2. Any air contact creates flammable vapours
5. Paint
5.1. Taubmans paint tins
5.1.1. Clearly describes the contents
5.1.2. Has a handle to transport
5.1.3. Easy to reseal
5.1.4. Difficult to open
5.1.5. Single use / material intensive
5.1.6. Can't recycle because of paint contamination
5.1.7. Air oxidises and spoils paint
5.1.8. Have to return to paint tin reguarly
5.2. Paint pots
5.2.1. Uses ventury effect to spray and transfer contents
5.2.2. Strong and sturdy
5.2.3. Handle for easy carying
5.2.4. Needs to be washed out after use
5.2.5. Needs high pressure to spray
5.2.6. Expensive
6. Wine
6.1. Goon bags
6.1.1. Use gravity
6.1.2. Simple
6.1.3. Environmentally friendly
6.1.4. Bag and seal leaks air
6.1.5. Not premium
6.1.6. Has to be above the serving container
6.2. Decanters
6.2.1. Premium
6.2.2. Good for serving
6.2.3. Open to air
6.2.4. Can't be resealed
6.2.5. Need to be washed
7. Glues
7.1. Chemical Adhesion
7.1.1. Reacts with vapour in the air