It varies depending on the airline you're travelling with. Airlines will often have their baggage restrictions on their website.
Many international airlines have a size restriction of 158cm (62 inches) linear. That is, when you add up the height, width, and length of the luggage, it has to be equal or less than 158cm/62". Anything larger would be considered oversize.
Weight wise, economy class is generally 50 lbs (23kgs), although some smaller airlines restrict to 40-45 lbs. Executive/Elite/Business/Promotional/First Class can take up to 70 lbs.
Yes, you can bring a big bottle of shampoo in your checked luggage as long as it complies with the airline's regulations on liquids.
A 62-inch luggage is typically considered large and can hold a significant amount of items for travel.
Yes, the ferry staff will check your luggage if you're in a big group. Many ferry services ask large groups to arrive early for check-in.
All big hotels have Bellman services, most will hold your luggage at no cost to you. However, you should tip $2 per bag.
one big and two small
One can find children luggage online on websites like Big W, Argos, Overstock, My Shopping, Way Fair, eBags, TK Maxx, Selfridges, Baby Central or Luggage Online.
You can get hardside luggage from most big department stores for example, Sears in the US or Debenham's in the UK. You can also try sites like Amazon or eBay.
Liquid soap they will allow in your hand luggage if it is a mini bottle. They will not allow a big bottle on the flight. Also, a bar of soap should not be problematic.
Yes, you can bring large bottles of shampoo on an airplane in your checked luggage, but they must comply with the airline's liquid restrictions for carry-on luggage.
Target would probably be a good place to buy good luggage. They have a lot of quality equipment and have a very wide selection. Staples doesn't really sell much big luggage.
There are a few places online that you can purchase Wenger luggage. It can be bought through the online department of big stores like House of Fraser and John Lewis.
The 62-inch linear luggage is approximately 26 inches tall, 16 inches wide, and 10 inches deep.