To get Rosalind to full LP, all you need to do is take Mana's "I Want a Four Leaf Clover" request. Once you find it at Blessia Island-Center(Right side) Give the clover to Rosalind(NOT MANA). Rosalind will then say "I am throughly pleased! Thank you!" with yellow music notes. Then quit Mana's request and do it again the next day. This will be good if you want to get the 100,000G for the school or marry her fast. Spoiler:
In Rune Factory 2 near the end of the game, after you've collected all the tablet fragments, Barrett will mention something being sealed under the city. He'll also say that theres no way to get under the city. This isn't true, to get under the city you need expand your barn until it's at the 28th floor. Once you have that final floor built there will be a hole in the floor. Going through the hole takes you to dungeon under the town. You need to be ready to fight because the monsters there are extremely strong.
An easy way to make some money is to go to school. When the workshop is built, go into it from about 12pm-1:30pm, around lunch time. Douglas will come in and give you lunch, which you could sell for easy money. This works everyday except for holidays.
If you don't like if when a storm messes up your field, or keeps you in your home for an entire day, then here are some ways to avoid the trouble. First of all, to avoid a storm you first need to know it's going to happen.To do this just talk to Alicia and ask for tomorrows weather (she'll make you pay 10g for her fortune telling, but if there is a storm, it's definately worth it). If she tells you that there is a storm, there are two things you can do to stop it, and one thing you can do to make it not so bad. One way to stop it is simply ask Alicia to change the weather (100G to change to sunny weather, and 1000G for rainy). Another way is to camp out... The storm wont happen because it can't stop you from going outside if you're already out there. And lastly, if you didnt know that there would be a storm, or you just didnt feel like changing the weather or camping, all you have to do is save you game the morning after the storm, and reload you game if the storm messed up anything important. (the damage will reset every time you reload) Personally, I just change the weather, but you may be broke, so these hints may come in handy