Multiple Currency options
Excel uses a default currency, based on your home location. It is a big hassle to find and change the symbol in a spread sheet where multiple currencies in play. It would be very useful if there was quick access to the most recent 5 or 6 currencies used.
Steve Harding commented
This is a much needed feature, I am often working on spreadsheets with multiple currencies, normally South African Rand, (ZAR) my default currency, with expenditure in ZAR, USD, and normally one other and need to do my accounts in Euro, a simple way to toggle between all the currencies in use in a spreadsheet or recently used would make Excel a much easier place for me.