Hello and welcome! 
To give you an estimate. For food: you can have a satisfying local meal for $10. If you are a fan of fast food there are many places like Texas chicken or Chester's, a typical meal would cost around $6.
Clothes: depends on which shop are you choosing, you can find really expensive ones here, like Levi's jeans for $55, or you can have a good jeans (not brand) for $20.
Alcohol: CHEAP! A miller beer would cost you $1.
Cigarretes: cheap too, a packet will cost you around $3 max.
Traditional Market: I don't suggest you go there, for shopping go to Majidi Mall, it's a huge mall with fixed prices, you can find whatever you need there, if you go to the local market they will probably ask double figures since you are an expat. electronics can be found in Majidi mall for fixed and reasonable prices.
Let me know if I can help you more 