Between me my friends, we share gifts between eachother... and we try not to click "stack all artifacts" till there's nothing to share; the major draw back is that your artifact list is huge.. pages and pages of it cause if you stack all the artifacts before shareing; all the shareable ones you can post for friends to get will be stacked in 1 pile, basically losing all the itemized that can be shared into 1 share button.. this, for example is like traps, probes, planet and ship improvements.. The concept i'm proposing is that the artifacts have individual check boxes next to each one, so you can check a bunch and click "stack selected artifacts". This way, you can stack already gifted artifacts that can no longer be shared and are all yours to use or toss as you see fit.

+1 Godzilliion

+1 godlizzion?

Because you only ever need 1 Godzilla to get the job done.