- Wax pen
If you’ve ever attempted multiple immunostainings on tissue sections mounted in series on a histology slide, you’ll know the frustration of having your staining solutions spill over to adjacent sections meant for another target. This annoying situation can easily be prevented by using a wax pen to mark out a border around each tissue section. The waterproof boundary, together with surface tension, keeps the staining solution precisely where you pipette it. Give one of these to a lab mate who does lots of histology for maximum smiles.
