You´re travelling expert,Cut the handle off your toothbrush. Rip out the pages of the book after you have read them ha ha. When we travelled we went for light weight clothes like cotton that dries quick and don't need ironing. Cut back on too many bottles. Get shampoo and conditioner. That too can be your shaving gel. Make sure you take it in a backpack as easier to carry then case. Take travel wash for your clothes and wash them more regular. Get super absorb towel that dries quick they are smaller and take up less space in rucksack. Hope these few help. I know they sound obvious but when we went we got some of thesewrong and learnt the way.