Estimating storage size for Splunk Index can get complicated; see simply web-based tool for sizing using Mustafa’s calculation + nice interface. Check it out.
3rd UK debate tracked on tweets w/o Cameron & Clegg, still talked about even when absent; Splunk tracks findings-positive, negative, overall sentiments & tweets
Better ways to do tedious spreadsheet searches in Splunk: import files, manipulate data using search language, use lookup for logs by matching lookup criteria.