How to store left overs part from digikey/mouser etc , is there a convenient way

[Shock]

Small envelopes or antistatic bags are fastest and cheapest way to stow identical leftover small components worth keeping. Divide a drawer into sections and when you have spare components write or label one, throw the components in and use an old transformer or something as a paper weight to keep them tidy until the row fills up.

For larger and easier components like electrolytic capacitors it's easy to throw them into a container until hunting through them becomes too tedious. If you start to accumulate a lot of parts you can sort them into component types.

[Berni]

Also one important tip to keep in mind when making a component sorting system is to make sure it is easily expandable to more categories.

So if you use boxes to sort stuff out make sure there are a good number of empty unused boxes left over. These are reserved for when you start getting a lot of components that don't sensibly fit into any of the existing categories, or when a certain category box starts to get too full it allows you to split it off into two sub category boxes.

[Vovk_Z]

I store most of small parts I often use in a shelf at my table  (in attachment).
SMD parts (resistors, capacitors) are stored in SMD-books.
Almost all my own wired resistors are stored in two boxes.
But it is not everything I have - I have at least one larger box with large parts and so on, and a shelf with a different unsorted staff.