UDInventory is an inventory and Mall search compactor script. It will combine like-items in your inventory into one button and display how many of that item you have next to it. In the case of firearms, each firearm is displayed separately in parentheses with its current ammunition level. Revivification syringes' (10AP) reminder is flagged in bold, dark red if you currently have 10AP or less (e.g., the act would be considered a "suicide revive," since you would have negative AP afterwards).
In addition to compacting your inventory, the store options while standing in a Mall will be compacted into one "Search" button with an accompanying drop-down list.
There are other, more comprehensive inventory scripts out there--but I wanted one without all the extra frills (and I just wanted to make it for the sake of the task).