I think I can count on one hand the times I have seen a coupon for Altoids!
Right now you can print a coupon for $0.50 off on any ONE (1) 1.76 oz. Altoids tin .
If you live near a store that doubles this should bring these down to around $1 a tin!
In my area the best deal from a store that doubles is Farm Fresh:
Altoids (1.76 oz) $2.00
Use $0.50 off on any ONE (1) 1.76 oz. Altoids tin 
Final Price: $1.00