stocking up on baby stuff

Brianna
what kind of things can I stock up on before I find out the gender? almost 11wks.. can I stock up on diapers, wipes, soaps & such?? do soaps expire? (silly question, but real question lol) trying to prepare myself. I always wanted til last minute for my other kids. I don't want a baby shower, SO & I want to get mostly everything ourselves. tia!