Covering pictures with stickers

Q: My mother purchased a trolley online which will help her when she buys groceries. We could choose different designs and one of the designs was one which had multiple prints of cartoon owls on them. We didn’t buy that one and opted for a suitable one but the owl one was mistakenly delivered. Is it permissible to keep it? I don’t want to go through the hassle of having it returned because it is a big product and I think with bigger products we need to pay more for it to be returned.

Washing clothes in a bucket

Q: What is the correct procedure of washing clothes by hand to make them paak? Is it ok to do this:

First rinse out the bucket, then put the clothes in the bucket, and add detergent and clean water from the tap. And soak for a few mins. After take the clothes out one by one and rinse under the tap and squeeze out the water several times.

Not giving a beggar anything due to not having any change

Q: Sometimes beggars come and ask us for money when we are outside the office with colleagues. Sometimes, I don't have small currency to give them and neither can I say anything to them. Last time I went to the city and we were outside the office and one beggar was asking for money. He came to me but I didn't have small currency at that time to give to him, but he stood infront of me. After a few minutes a colleague who was with me gave him some money. I sometimes think what they might think of me. Genuniely if I had small currency I would have given it to him. Can we deny if we don't have small currency notes.

Urine drops during pregnancy

Q: During prenancy, due to extra pressure on the uterus, it is too difficult to move and urinate. This pressure causes some fluid to be discharged from time to time especially when you try to move or have urine pressure. For namaz and wudhu, do we have to wash the trouser again and again? I live in a joint family home and it looks very wierd and awkward. If a lady teaches in school, there might be no washroom to wash the trouser. I have only two dresses then I'll have to wash the trouser many times for offering salah or reciting Quran?