Running

Try different socks. Everyone has different preferences and different experiences.

I wear "1,000 Mile" socks - double skinned, either the socklet or full sock version. These seem to prevent any blisters when I'm wearing Brooks Glycerins or Brooks Defyance, but are useless with my Inov8s.

Very much this - I don't get blisters anyway, but the improved level of comfort from investing in good double skinned socks is great.

Currently using Hilly, based on recommendation from someone here (thanks whoever that was, sorry I can't remember).