Oliver owns a laundry shop, and he charges $2 per kilo of laundry. Two days ago, his shop washed a total of 5 kilos of laundry. Yesterday, it washed five kilos more than the previous day. Today, it washed twice the number of kilos washed yesterday. How much did he earn in total over the three days? Let's think step by step and output the final answer within \boxed{}.
user