I would say that I can now live a good month out of a 30l backpack, even though I have a DSLR camera equipment with gimbal and a notebook with me. That alone accounts for most of the weight and fullumen. That’s why I’ve made it my challenge that at least the rest needs as little space and weight as possible.
I want to show you how a composition looks like for a 4 day trip.
I use a 4g light PVC pressure seal bag as a toilet bag. With such plastic bags I separate hygiene articles from clothes and technology. I used to use a cube pack for this. But only one Medium Packing Cube (Amazon Basic) weighs 60g.
Toothpaste tubes are bulky and heavy. Either you always have to buy travel tubes or take a opened tube with incalculable residual contents with you. Avoiding heavy liquids when travelling is not a bad idea.
In the meantime, I use toothpaste tablets in everyday life and on my travels, which I can dose exactly to the day. A daily dose of 2 pcs weighs 0.6g. The tablets can be taken in small PVC bags (0.7g) to save space.
I bought some light-looking toothbrush models. At 10g, this is the lightest yet. I’d love to use sustainable bamboo toothbrushes but I haven’t found one with a pleasant mouth feel yet.
I can also take cotton / bamboo cotton swabs with me counted. One piece weighs 0,25g
I transfer deodorant into a small plastic roll-on. The empty bottle weighs 10g. For a daily ration of deodorant I calculate with 1g. I would prefer a powder solution because I could get rid of the heavy container and I would have to carry less liquids. But I haven’t been able to gain any experience here yet.
Argan oil belongs for me likewise to the things on which I would not like to do without also on the way. Here the container weighs 8g and the daily quantity of oil amounts to 0.7g.
The toilet bag for the 4 days weighs 79g and takes up practically no space in the backpack.
Once you have figured out how much of each object you need per day, you can scale almost all articles to suit your travel time.