Please check the dingy rating and stick to it.
While I've never been cited for exceeding a dingy load limit, imagine if someone got hurt in an overloaded dingy and they start asking you (the captain) questions like: had you been drinking? Did you have PFD's for everyone? Did you have emergency equipment (VHF, flares)?
Making two trips at most places is no big deal. Also, if you get a kayak, SUP, or wind-surfer you can tow them with a person or two in them, as well as a load limit in the dingy.
Use good judgement... not too far, too fast, too dark, too rough, etc...