1 - welcome op
2 - can't believe you scored that handle
3 - bin abuse is my pet peeve and i have bruises to prove it. (partners elbows my ribs telling me to shut up already and myob)
i shake my head in wonder when passengers stuff all their earthly (travel) belongings into the overhead; briefcases, coats, purses, dinner, laptop bags, etc and worst of all... the sideways rollaboard...arrgghh. inevitably, on full flights, the last bags are gate checked and lots of pax are disappointed. i carry a fairly large shoulder bag (notebook, cameras, flash, bose headphones, books, etc) and it fits under the seat. once underway i move it under my legs and the seat space in front of you is free. you may want to try this. someone told me here on ft years ago and it really works great. especially when you have a window seat and don't want to get out to unpack all the stuff you put in the overhead.

- one other advantage... when boarding you just throw your bag under the seat and sit down. not blocking the aisle trying to organize your belongings.

- this may not work with the miniature space on the coach aisle seats.