Do you have any advice for potential travellers?
The schedule: a lot of early starts and full days. Not much free time for sightseeing, especially in B.A. - and leave the heavy books at home.
Money: Don't expect to change money in a bank - the travel schedule doesn't allow time. Travellers' cheques "seriously annoying" (Hugo) Take some Arg. $ from UK for small items, and change your US $ as you go. The official rate is currently approx Arg $ 4.90: US $1, but everyone is happy to get US $ and shops/hotels will change at Arg 5-7 : US $1.
We found the spending money estimated in Exodus trip notes quite adequate.(cf Food, below)
Food: Lunch often a picnic snack on the road. For dinner a steak/ lamb grill and salad between 2 is plenty, the portions are v. generous. Don't expect much fruit or veg. on this trip unless you buy your own.
Clothes: Buenos A. hot and humid - take light clothes.Also for Iguazu if you go there. Elsewhere "dress like an onion", but none of us wore our thermals. Windproofs and close-fitting hats essential - many of us bought Bufffs, or cheaper El Chalten versions. Floppy sunhats will blow away.
Contact lenses: if you wear hard lenses take an alternative eg presciption sunglasses - or closefitting goggles. The duststorms are very gritty, both in town and in the mountains.
Mosquitoes: you WILL get bitten around the Refugio . Take antihistamine as well as repellent.
Ushuaia: Consider asking for a Channel view upgrade when you book. It's the end of the road, and the view is beautiful.
Iguazu Falls extension: the trails open at 8am and close at 5pm. Very crowded. If you can be at the start of a trail at 8am (and if staying at the Sheraton you can do this before breakfast) you may have a blissful hour entirely to yourself. If meeting a guide, ask for an early start.
Insurance : you will be asked to state whether you are insured for helicopter evacuation. Not all of us were, but it's worth checking: on the long treks you're a long way from the nearest hospital.