I've simply decided to use large match boxes to store some components... they're made from cardboard and, as there's a double layer of cardboard when box is closed, they're quite sturdy, and won't open accidentally (due to friction if it's not obvious). Each one is also just a bit larger than the regular slot in those 24-48 slot racks.
As a real world example, here's my box with some of the capacitors I have:
The battery is for size reference, it's an AA (R6) battery .
These boxes are about $0.90 for a set of 3 (in regular shops, if I go to some large order stores - similar to Costco in US i guess- they're cheaper) , they hold 240 matches (approximately) and can also hold 6 smaller match boxes (so perfect to put 6-10 capacitors in smaller match box to differentiate brands/series) and it's also just the right dimension to put the digikey/farnell labels inside.
Now the only problem I have is what to do with so many matches... I already have thousands of match sticks in a bag I have no use for.