There is so much today about recycling and re-using materials.  One very important item to re-use is glass ink bottles.  Dick Blick company used to sell glass ink bottles that were empty, by the dozen.  Their supplier went out of business and they haven't found a replacement source.  So, save your empty ink bottles!  I use an old Dymo labeler to put labels on my own mixes of ink, stored in re-used ink bottles.

It's nice to be warm and working inside: