Cuba tips we gleaned from the net and learned on the ground. We didn't have too much difficulty but really didn't stray too far from the normal "tourist" path.

• Put your Health Insurance in place prior to leaving and carry proof... you could get dinged at customs otherwise.
• Bring Canadian cash (not American)... you'll take a hit on the conversion at the CADECA (they are readily available) from Can to CUC, but not near as bad as a credit card.
• We took an I-pod (with a universal plugin) which served us well in Varadero. The voltage was 220 at the Barcelo... something to be aware of if you require electrical.
• Take copies of passports / cards and hold in a different place than originals (leave a copy at home with contact as well).
• Just like PEI, you need to pay to get off the island... it's 25 CUC (not Canadian) or you won't get by customs.
• We took lots of sunscreen (essential), tylenol (probably essential), immodium (precaution only), hand wipes (essential for excursions), sunglasses (essential), used our room safe, but left our Computer / BlackBerry at home.
• One is consistently in the position for tipping. How this gets handled is, of course, a matter of choice. However, we liked to tip consistenly but often found ourselves with larger bills and change was hard to secure. Try and keep coins (pesos) on hand if you're lucky enough to source a place that can provide those smaller denominations.
• We grabbed some "water shirts" before departing... we are all of fair complexion (to say the least) and these were well worth it, as compared to being uncomfortably scorched!!!
• Tips for Excursions:
  • We got to sit at the front of the bus because we were the last resort on the island (and thus first picked up). Great view and got to know the guides very well.
  • Extra batteries for the camera, water, and maybe even a shirt for the Air Conditioned bussing
  • Coins for washrooms are key as the tip lady may keep you from entering (Washrooms can be tricky so the packaged handwipes are kind of important too)
  • The ipod was a welcome distraction when the road miles got a bit long
  • I kept my Frommer's Guide close, as it was fun for me to track the highways we took, attractions we visited, and know the general geography of the next stop.