I got a PM from a RU user having some issues with the powder sticking inside plastic bags when using small quantities.
I use 10mg per day now and it still works fine !
Suprisingly, a lot less powder that previously though is needed to achieve the same goal.
I use small pieces of aluminum that i fold and keep in the freezer (minus 20c).
I bought a roll of the thickest cooking aluminum sheet that I could find in the supermarket, then cut out square pieces of approx 5cm by 5 cm with scissors and use those on my balance.
Make sure you fold the sheet so that no air gets trapped inside, but that's very easy to do with the aluminum sheets.
When I apply the powder, I just open the aluminium sheet and empty the powder into a small 10ml bottle filled with some ethanol, then I use a dropper to wash down with ethanol any sticking powder from the alu sheet into my small bottle.
Fill out the bottle, close it and shake well a few times, and after 5 or 10 minutes the mix dissolves into a fine suspension.
Nothing is wasted that way.
So, I spend only 30 cents a day on RU powder now....who said now that RU is an expensive drug !