Spit up, mold and stains

Any tips on how to keep mold away from baby clothes? My LO spits up an excessive amount all day and we don’t have time to do laundry daily (we do it weekly) so we’ve found some mold on a couple pieces. I’ve started trying to wash off with hand soap immediately after spit up then hanging to dry before throwing it in the hamper, but again this becomes time consuming when she goes through several outfits a day... I need tips also what I can I throw in the wash to remove these ugly yellow stains 🙃