3/4 cup distilled water (filtered or cooled, boiled water also ok)
1/4 cup white vinegar
5 drops Tea Tree Oil
5 drops Lavender Oil
Glass spray bottle (we found these, at Target - there's also other sizes on ebay)
How to make it:
Place the essential oils in your bottle first
Add the vinegar (a funnel can be useful)
Fill the remainder of the bottle with distilled water
Replace the cap and shake to mix
Spray over your mat to maintain freshness. Don't use too much. Air dry before rolling and storing.
Note: We've kept the oils at a low level but some mat fabrics are sensitive to essential oils, so patch test a small area of your mat first to ensure it doesn't cause damage.