Rubbing Alcohol & Watercolour:
Finally you may wish to try adding rubbing alcohol. (WARNING - Don't do this with the children and be safe at all times, do not put the rubbing alcohol near flames and don't apply too much heat when drying the page).
I used a 70% alcohol one. Carefully pour a drop or two into the lid and drip a few drops onto the page. Be very careful and always have something protecting your desk or work area. You can do it this way or use a pipette or cotton bud to drip the alcohol. The effect this creates is stunning and it will keep burning through the watercolour until it is fully dry, so make sure there is nothing flammable near by.
Rubbing alcohol can be used to create a variety of effects in paint and there are several tutorials out there. If you missed how to create an alcohol ink spray paint be sure to have a read of tutorial 2 here.