Annuals are shallow rooted so don't allow the soil to dry out too deeply. Begin watering in the morning and water through the heat of the day. Stop in mid-afternoon to allow the plants to dry off before nightfall. Night waterings can create ideal conditions for disease development. During periods of very hot weather, water earlier in the morning.
What size do you need? Many experienced carpenters use a 16 oz. claw hammer for most jobs, but also carry a 20 or 22 oz. framing hammer for their heavier nailing jobs requiring big spikes. For lighter work, a 13 oz. curved claw hammer can be useful. Even a 7 oz. hammer will come in handy for smaller jobs like making picture frames.