sun cream!!!
Ask the airline you are flying with, but I suspect not.
No, you cannot pack a suitcase within a suitcase.
to pack one's suitcase is translated 'faire sa valise' in French.
Pack
most probably if they are in your suitcase and not your hand lugauge it should be fine.
Yes, you can pack shampoo in your suitcase as long as it meets the airline's liquid restrictions and is properly sealed to prevent leaks.
yeah you can but put it in the big suitcase
2 at a time
Yes
Yes, it is generally permissible to pack shampoo in your suitcase for travel, as long as it complies with airline regulations regarding liquid quantities and packaging.
Pack it securely with lots of bubble wrap and hope for the best.
freeze them in a cup.