My approach
- Laptop case
- Shoes
- Laptop in bin with KHIAI baggie
- Rollaboard
- Wait until rollaboard disappears completely, ignoring TSA ranting about holding up line, if applicable
As Global_Hi_Flyer mentioned, the belt frequently gets reversed and this order seems to accomplish several things:
- My shoes tend to stay together, since they are sandwiched between the laptop bag and the bin
- My laptop bag gets pulled an inordinate amount of times - the life of an IT professional with lots of cables and tools
- Laptop is usually not backed all the way out of the X-Ray machine