My therapist's are usually on a table between our two chairs. Sometimes they aren't close enough to reach so he shoves them over my way.

Once he was out of tissues - he was totally mortified as he set a big roll of paper towels on the table, and said something like, "what kind of crap therapist runs out of tissues?!" I actually found it very funny. And as I tend to harshly criticize myself when I do stupid things it was weirdly helpful, because he's really not a crap therapist.