How do you store & organize STICKERS?

I organize by theme. I use 13 x 13 plastic envelopes. I have about 30+-ish categories. 
Everything for that theme goes in there. Stickers, paper, embellishment, chipboard, etc.
Edited to add: Some themes, have a lot of paper (Halloween, Christmas), so I put the paper in a separate 13 x 13 plastic envelope.

Stickers that don't fit into a theme, go in a binder that is filled with divided holders (like sheet protectors with various size pockets).

Well PaperAngel there's another part of my life that needs some organization.
I currently have my stickers stored by theme along with paper & embellishments in Artbin "satchels" (plastic containers with handles). But I do have my alphabet stickers stored in the tall stadium sticker holders from sb.com.
I really do need to weed through my themed stickers and get rid of some.

Alphabet stickers are upright in a re-purposed printer cartridge box on my desk. I am trying not to buy letter stickers anymore, and print all my titles with my Silhouette, so once they're used up (probably in 100 years) the box will go away... They're constantly the wrong color, size, or I don't have the correct letters so half the time I don't even bother to flip through them... hence why they are now parked on my desk right in my face.

Theme stickers are in their theme 12 by 12 drawer (the kind that come in sets of three) Everything else is in another drawer.

I keep my smaller sticker sheets on my clip it up. I keep my 12x12 sheets in a plastic folder/envelope to flip through.  My alphabet stickers (that I NEVER remember to use) are in size order in a drawer system.

Some themes I keep together. Depending on the quantity, I use either a ziploc bag or a big 12x12 bag.
-Baby
-Christmas
-Halloween
-camping/outdoors
-summer/beach
-wedding
Etc

If it doesn’t go in a theme, I sort by size. The 6x12 size I keep in one section, and smaller stickers in another.

When I’m making a layout that doesn’t overtly fit a theme, or when I’m wanting some additional pieces, I rifle through all my stickers. My stash is not too large so I’m able to do this easily.

Alpha stickers are housed in the Tall Sticker Organizer by SB.com. I have it sitting in a Kallax cube, where there is about 2" space in front as the base is not as long as the length of the cube. It's just enough space to hold a clear acrylic napkin holder, similar to this one. (non-affiliate link) that holds the small sheets of alpha stickers (6x8 or smaller). The smaller sheets would get lost in the tall sticker organizer, so it works really great!

All other stickers are sorted by size, to fit in the Die, Stamp and Supply Organizer by Totally Tiffany. I absolutely LOVE this thing. All the dividers are removable so it can be customized. The back section I removed the divider and it holds 12x12 stickers/chipboard. All the plain, heavy duty chipboard received from shipments of single sheets of patterned paper goes in the very back of this section to help support the sticker sheets.

The middle section I have one divider in the middle, so there are two sections that fit all the 6x12 sticker sheets/books. The front row I have divided into thirds. Two sections hold pocket cards and one section holds the smaller packs of things like word stickers/puffy stickers, etc. I also keep two of the 4x6 Iris photo containers sitting on the ledge of the container between the back and middle section. They hold enamel dots.

This organizer sits on my desk in front of me, just to the left, but at an angle so it's all in arms reach. I may end up putting it on a rolling cart in the next iteration of my craft room, just to free up more space on my desk for creating.

OHhhh but thickers or alphas in 6x12 are not cut up.. lol they stay in their little family... I keep those all together in a shoe box on their sides to flip thru what alpha im looking for...

I don't have too many stickers except for alphas. Alphas are all together in two Artbin satchels (like the iris cases). Tiny stickers, for example, I have sheets of hearts, triangles, and other shapes, go in my shoebox of enamel dots because I think I will use them the same way. Words are together in a photo case (hmmmm, should I move them to my alpha boxes?). New sheets that go with a collection stay with that collection until the paper is used up.

I keep all of my different collections in individual 2 gallon storage bags. The stickers stay with the collection. I have a hard time using a sticker without it matching at least one paper on my layouts. My brain just won't let me mix artistic styles. I like the idea of cutting up and sorting sticker sheets but it just isn't the way I scrap.

I love this! I especially love your use of the heart shaped candy box.

My stickers stay with the collection until the collection is used up enough to put in my general collection, by theme.

One thing I do with sticker sheets is use an Exacto knife to cut out random elements that belong in a different theme. For example, summer lines often have various fruit stickers. If I don't think I'll use with the collection, I cut them out and place them with my food/kitchen theme items where they are more likely to be used.

Your organization is amazing 950nancy.