I am leaving in October to go travelling - scary in these times I know, but its workaway style stuff so hopefully easier to navigate and a bit safer. I will be going to Portugal first and then potentially south of france / italy or spain although not certain yet, but will be gone October to December. I need one 70 litre ish rucksack and a day bag and don't know what kind of thing to pack - firstly worried i'll miss off essentials and also not sure what kind of clothes e.g. will it be hot or do i need to pack thick jacket? Help!