so today car went out for like 10min so i put back car cover on it but second time it went out for like 30min
though it was very little dust on it but to avoid scratches by putting car cover back i let it stay without cover
n then after iftaari i washed the car with just pressurized water by choa motor n then dried off with water magnet n it got all clean n that little dust layer gone as well,quite cost effective n no need of detailer spray n simple as well as less time consuming too n after that car cover back on it + it was a good exercise to digest iftaari 
since some of my stuff will be shipped from UK so thought to get some car stuff along as well
em thinking to get
1)optimum no rinse n wash for quick cleaning of car 
2)meg's hi tech yellow paste wax
3) big sized mf towels 
anything else which i should get from there that would be cheaper to get from there n not available here,like both the first 2 items are not available here