You can collect some sugar cane from the lakeside. Buy a rake, faucet, hose, and sprinkler. Set these up in the grass by your base and you can make a bunch of sugar bags at the workbench to sell from the sugar cane you grow. The sprinkler covers a large area. I've been able to grow at least a 6x6 grid and each harvest gets you ~700 points. The squares of soil the rake makes don't have to be lined up perfectly to work.
Viewing post in Few Tips for 0.9 I've discovered
a 10x10 area is about the maximum ive found that works consistantly, maybe 12x12 but then the dirt flickers from watered to not constantly
also technically making paper scrap instead of sugar bags is currently very slightly more profitable but more time consuming, and by slightly i mean only 30 points difference with a 10x10 grids worth so probably not worth the extra time