I finally had enough of the hole in the soul of my boots that would leave me with a wet foot about 30 seconds after I leave the house. I used this method to break in the last pair i had and they lasted me over 6 years before the finally leaked.
I hate shoe shopping as it is so hard to find a shop that stocks a well made plain boot that does not cost the earth.
After much searching of the shoe shops in local towns I finally managed to find a local shop that stocked the plain slip on Chelsea boot with an airwair soul that I like to wear, an agricultural supplies store of all paces.
In the past I tended to get blisters every time I got a new pair of leather shoes or boots. a number of years ago I asked a friend who owns a leather shop what was a good way to help break in new boots to reduce the chance of blisters. He sold me a jar of mink oil and said that it was one of the best ways of softening new leather and help rejuvenate older leather goods that have started to dry out and crack.
I used Mink oil to soften up and restore the leather on my biker boots it helped them last for over 10 years. The next time I got new work boots I used the Mink oil to soften up the leather before I wore them and I didn't get any blisters at all, the leather was as soft as a glove and easily conformed to the shape of my foot.
Mink oil, a blend of silicon, lanolin and vitamin E oil and of coarse quite a bit of mink fat.
A heat gun or hair drier.
A rag or sponge to apply the mink oil.
A cloth to work the Mink oil in with.
I hope you find this post useful if you are prone to blisters when breaking in new boots