USA-based Inventory Management And Dispatch

I need someone who lives in the USA to help me with some light tasks 2-5 times a month. DO NOT REPLY IF YOU DO NOT LIVE IN THE USA. I need to store about 240 t shirts and a few insoles, etc. at your usa address and if i get an order, you pick and pack and send the product to a usa address. I provide you with boxes and packing materials. There is no storage fee but your minumum payment is $20 a month even no orders come. My product is a summer product, so there will probably be some months with no orders and you dont have to do anything. Easiest job in the world. 1 shirt is 150g, 28 x 25 cm x 0.5 cm package. I will send you google sheets to keep track of inventory.