Ledger examples

Inspecting transactions:

```
# show me expenses for october (--period)
ledger r Expenses -p oct
# what's the most expensive? (--sorted)
ledger r Expenses -S amount --tail 10
# how much was spent on grocery? (--weekly, --monthly)
ledger r Grocery
ledger r Grocery -W
ledger r Grocery -M
# what did I spend my Mastercard on? (--period, --begin, --end)
ledger r mastercard
ledger r mastercard -p "january"
ledger r mastercard -b 01/25 -e 01/31
```

Graphing:

```
# Graph my bank account balance, monthly
ledger r Savings -M
# Graph my expenses, monthly (-n = --collapse)
ledger r Expenses -M -n
# ...what's the average per month?
ledger r Expenses -M -n --average
```

Simple:

```
# what did I do yesterday?
# ..list transactions on this day
ledger r -p 01/26
ledger r -p yesterday
```

Switches:

```
# what's everything I got in USD? (--exchange)
ledger b Assets -X USD
```