We've been homeschooling our two oldest, one who is now almost six and one who is now four and a half. I've kept very close track of what they have used, partly because that's just how I am and partly because DH began the year assuming homeschooling would be astronomically expensive and I wanted to prove him wrong.
Here's the supplies (not books) we went through, for both kids (I may be missing a few things):
-crayons; one 102 pack, two 64 packs, and fourteen 24 packs (they color a lot, crayons get dropped and broken frequently, and many of these crayons are still in the 'in use' bucket), we use crayola brand
-writing pencils; five dozen, about eight of which are still in use, we use ticonderoga brand because I think they sharpen more nicely than others, I sharpen them by hand instead of using the electric sharpener so they will last longer, only a couple of these were lost or broken and I was very surprised by how many pencils they went through, we use little cap erasers to extend the use of the pencil to after the original eraser has been used
-colored pencils, four 12 packs and one 50 pack, crayola brand, many are still in use
-markers, sixteen (yes, 16) 10 packs, eight 'skinny' and eight 'broad', crayola washable brand, almost none are left and I'm waiting for a sale to buy more, my kids use these all the time and like to do things like cover paper grocery bags with designs which uses them up really fast
-70 sheet notebooks, none, we haven't use them but we have used about 100 sheets of writing paper as well as a primary composition notebook for each in addition to their handwriting workbooks, I began the year with a few on hand and the kids used them to draw in but I prefer using three prong folders with plain white paper in them for them to make little books out of
-construction paper, eight 96-sheet assorted packs, target sells these for 88¢ in the back to school sales so I let the kids go nuts with them if they wanted
-watercolor paint, four 8 color crayola strips, I bought lots of these when they were $1 but they lasted much longer than I thought they would
-glue, forty (yes, 40) small elmers glue sticks and four 4 oz. bottles of white elmers school glue, we really could have used more white glue as I found myself rationing it and it's so inexpensive on sale, the kids really enjoy projects where they glue stuff all over something (like an old kleenex box)
-erasers, about ten cap erasers and two larger pink pearl erasers, the two large ones are still being used, these last a lot longer than I remember from school (I think because they are not being lost or loaned out to kids who break them apart)
-plain white copy paper, three full reams (500 sheets each), the kids really like drawing so paper is used fast around here, we don't have a working printer right now (we can print for free at our library) so it's been all the kids
-tempera paint, a dozen 16 oz. bottles in assorted colors, these have lasted all year by using a few little dollops at a time on a painter's palette
-roll paper, three 200' rolls, these go on our easel for art time, the last one is not completely used
-scissors, two pairs of westcott round tip, these are still in great shape and we'll likely use them for the next couple years until the kids need larger ones
-manila folders, about 40, for lapbooks, storing/organizing work, and other projects
-rulers, two clear plastic, still looking good to be used next year
-dry erase markers, two 10 packs, expo brand one pack is still in use, partly for drawing some for lessons
-chalk, four 12 count crayola boxes, mostly for the kids to draw with but some was used for lessons
*please note I'm not including all the random art, music, phys. ed, etc. items we used since those would make the list three times as long; I only included items typical of a school supply list
**please excuse me for being a school supply nerd, these sales are my favorite time of the year and I'm so excited to go through my lists to see what needs to be purchase for the upcoming year