Okay thanks a lot for all your input. I already have bought a ledger nano and will start using it.
Writing the seed phrase on multiple different pieces of paper seems a good idea. If one gets stolen the thief still cannot access my coins. However, the downside is that if I lose 1 of the 4 parts of my phrase seed, I no longer have the complete phrase and it basically means I have lost the whole phrase.
Maybe, to tackle that problem the best solution would be write the phrase on 2 pieces of paper....divide them up into 4 parts each so I have 8 pieces of paper...1A,1B,1C,1D,2A,2B,2C and 2D and then store them all in separate locations. Would that be the best solution?
Or you could just write down the seed phrase in reverse or any order that you can easily remember and then store it in different safe locations. Even if someone accidentally discovers your seed phrase, they cannot use it because the order is mixed up.