Check in staff's days are numbered anyway as its going to self service machines.
Which will be worse, unless the airline build in an allowable excess over the 7Kg. At our local airport the staff have an instruction to use discretion up to a maximum of 0.99 kg over the 7 kg i.e. 7.99 kg is OK, 8Kg isn't.
Computers will exercise no discretion.
LIFE was easier before computers.
I check in what I can usually unless day tripping it.
It is my ambition to travel around the World with just my passport in my shirt pocket. Not made it - yet.
One was spoiled travelling as crew, you wouldn't believe what I have carried as "crew baggage", except that .... on one occasion when unexpectedly travelling home as pax. the Flt. Eng. was asked to pay an excess baggage charge for his suitcase. He opened the case and deposited his uniform jacket, trousers, hat, dirty shirts, Flight Manual, small toolkit etc. on to the scales and said ... "that's Company equipment, buggered if I'm paying for it, give me a receipt and I"ll draw it all again from Stores when I get home"
Collapse of - not so - stout party.