Start by simplify your tagging. For example, lets say you have two memberships. You want to give discounts on products to customers that have these memberships.

If there is potential for customers to have both memberships, you should consider tagging both with the same tag. Then create a price rule that tells gives discounts to those that have that tag.

To quickly view which of your subscriptions are tagged, click Memberships > Subscriptions and Packs > choose the tab for either Subscriptions or Packs > click Options > Show Tags.

To add or edit a memberships tags, click the dropdown menu to the right of the membership > click Edit Tags.