There are 2 keys to making your parcel lighter, and these are the same for all agents, whether you're using Wegobuy, Superbuy, Pandabuy, Sugargoo or something else.
The first one is making it lighter in the agent's books. For that you have to use the rehearsal packaging service. This can easily drop the price by 50% without having to give up on any items or packaging.
The second most important tip: drop the boxes. This mainly goes for shoes, but you can also apply it to accessories and sun glasses. You should apply for this before you submit for international shipping or do it in one move together with rehearsal packaging. Ditching boxes is cheaper, but of course you're losing something, so it's up to you. +