I have never really had much of a problem with blisters or my feet and I was determined that I wasn't going to start now so I formulated a plan:
- Clean socks every day which meant washing them each night as soon as I arrived at my accommodation. I took two pairs of Merino wool thick socks with me.
- No matter how tired I was, I took the time to wash and dry my feet carefully each night and paid special attention to keeping the nails trimmed.
- Gehwol extra foot cream from Bob and Rose at http://www.backpackinglight.co.uk/product200.asp?PageID=101 This is a fantastic product. Every night I took time to really massage it into my sore and aching feet. It has quite a nice smell and it's cooling and refreshing so really soothes your feet.
I don't know if I was just lucky or if my plan worked, but I didn't get a single blister, hotspot or sore bit anywhere on my feet. Yes they ached at the end of a long day but apart from that I had no issues with them at all. If you are planning a long walk I suggest you invest some money in a tube and be thorough with your footcare every day no matter how tired you are - you won't regret it and it might make the difference between giving up and finishing.