To expand on the same theme.
One thing I did find very useful was a large bag (very popular with the Bangladeshi population of London E1 and much of the Arab population of France) that looks like this:
Why?
When I broke down on my bike in France, it - along with its panniers - vanished away on a flat bed truck. Before it departed, out of the panniers I whipped enough clothes to wear, changing into them on the roadside. I then dumped all my riding kit, helmet, boots, gloves, tank bag (with my passport, bike papers, wallet, camera, charging kit, phone, iPad etc) wash bag, change of clothes etc into the bag. I could carry the lot, without struggling like some sort of demented chimp. It made life very much easier, which is all that you want really.
Similarly, had my riding kit had to go off with my bike on the flat bed truck, whilst I went to a hotel, it would be much easier to give the driver one bag with it all in, rather than lobbing items individually into his cab, where no doubt something would get lost. Again, it just makes life easier for everyone.
The bags cost around a pound, weigh nothing and take up no space. The whole of the Indian sub-continent and much of North Africa, can’t all be wrong.