Play around with it, see how it works for you. Start your day with two 16 ounce glasses of water, before coffee or breakfast and drink plenty during the day. Drink a glass before lunch, and ditto before dinner. A gallon is certainly not too much, and again, if you live in a hot humid climate, it may not be enough. I have lived in both Texas - hot or hot and humid - and Minnesota - very cold but dry cold - and found that people did not drink enough water.
Players may also burn certain items in Bonfires to achieve effects. Bonfires serve as access points for Item Box drops. Due to the lack of a pause feature in Dark Souls 2, Bonfires are an integral point for players to take a break from play.
Normally possessing only 3 uses in the majority of the games, this is tweaked in Fire Emblem: Radiant Dawn, where they have 8. This is possibly due to the increased difficulty of several stages in the game, where the risk of character deaths is exponentially increased. Vulneraries can be purchased in most of the Fire Emblem games at any Vendor, with their prices varying from game to game.